1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fa001be038734f9165421d3bdbf699ba31871bbe2da8f27040d8ea8368af9e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27674585-f0b6-4b3a-800e-39493f63e43d.json and https://artists.proofprofile.net/proofs/artist/27674585-f0b6-4b3a-800e-39493f63e43d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1002fa4049fda0b27f55717c2e62e89be81861a65fdc258e8174e8ff02771a4e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2458c53cf609936af3377fad53a2ea9303094c6621e5ce82f095d54a3428ebce. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4453ebb381ff07bcd6e6757ada5855128ec6feb48f6c0066a2f1636af8dfcf. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd320b971623e5a01bf47d55be07f020bc7bab3d8037266f6cc244b0bb0f656f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3303c4a1b4c1a5e051f1ff05f6487b31762a6efb22954bfd239ad9ea531c49. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf316783b4d8570d8b7d41512cd26b0529c96dcf078a8751fd80746ebfc018a2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0820c5c66ae78f8d25594a0d89a3d8e4079a3fd81ef5835ce36e91af295c42. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:03:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4898b82c420222795d983602a5a81ab4cbc98a3ed18a9d41307805a90e55c41d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ee3d1ef70c82115add85ac34268f9aadcf651f5802fe017c4b87d3770ea89d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebab3b441ff8ce6acc1516c7ee2150af1fbac1e59ef5afb05ca1c9a36f3f16cc. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e11a86a0404123dd2ad1e7c145a748e0c14485b460c7e10323195d781c24ff. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USME31000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983027a89d5170b437d93f167ee2bc0b33a4843db50742f6acd7cc0d66156fc3. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5e83a807145bb1b41dd0d7fc7d989463c74da285adf9168ea17acd8bfb08a5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b306d07fee208f327863ee4a7f6355a42e903af6ffda566ba7c84e011ff9d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc01f53355556412799e6e1414b0f8b599bffab358596ccbe8335f1095f0b3a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb528a20cebb982a0f787f7457bd56b30c05019b34b4dd9e594b0e63cb5e016b9. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b23698f6cb6bc5171922724f74e59096fcc9e6133ad1a1341ed0d17045ed1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006f1b0a66b334ca6ad7a5723477aa06f2dbf57041c2532f662ff3b3136a73de. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e368960377b4e7d9758b60bfe95b474dc93b574ca92beec5405f707b36ff6c8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0fcec5511e8cd27e6aa428019b04b600bd44ad7cc80faf3d81469a4148e746. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb115b72fae494ae3a9225e24a4bcbe2e61ef4293df816291f7c9fad1dfae8754. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:01:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1100014.
Divine Providence [Spotify Exclusive Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e94968ee13d2bc6762cb04ee9a69c6d6556c68c9cc549e1a6ae8896e682d859. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060fea565aeed3652c2d5fb95474e40c5bab45a5db5e720301b79d78d90a8f08. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:43:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b12ef810ea7efa981bd93eec346f8ac88acbc52fe3031904c1605b2671595d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7769ec12d3cd91310c879529cff903387474aa041d41b627f04b8b664868a2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a57dd8718fb3595ab8a6c64bf91e71c7be9ff601539e2d9b66e22e717fbdd6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18012d92ea730c5cd8e8b9a51272021c74fa56aa1153c497da813941e3836320. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7d9746f7e03c41ddfa72127a6136ee671b639fe2fe197276336cd3037f801d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:00:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276c27ee24bea0186af0b18dd5f2fb4d30199f430177d24c7ae28bb0459e0bfc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:05:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995be4689b7176d97961a30fb1db44125bf6df611df53c0aaf73db258cb532a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf993b569e865d7fa4388574386ace15dd5211adade1d26d64ed1a4dc44584c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bee2ba56bfd7c80c718c90eb0935138a6aed3cc41b21cac0e194b661641522. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:17:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb815f6f7cc439e8720c6801ab0427a0a645d24658e2e46b537c95ea7aafcc5f7. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:21:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f6bab8304e4f1a97995a3d74e8dda6d65726b14febfc6a114f2367e351a8c5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:17:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a51bb386edb37a20c65455dae2ea04b95ac46ea2147416dd13db61488f4859. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45de7ba6acedd3385c0d9820554b0de664d090578291979c919fe2dcb0798a7. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaadb43fd81c1d1cbe03cefdbac1beeec57d565fc1038df5e9e4501e639c323. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2928ae828bb318f649a9b7c56c8dc317bd5ce8c6ab771b92a235585b7c02010d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960ba4b435383e7da369984ee8bce891a68ceb6db70b093ed9a80546caa097ed. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66198169d49825375a1e16ec79d504a4307a5d6dc0f0817c8c64c1ede1b63b68. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1800131.
Rough Around the Edges (Covered by John McCauley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e5b7393c227b7efa1eb68389389357b4c1cf503770b66eee17ea5f381a4b9d. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFP2152108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d066909ce6a1964805d7b08e71002bb2f3e2bfb5ab48be20fe0bc159b2cfc19. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFP2152151.
Divine Providence (11th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a95fcead0dc1a94c714ed915538d73f47d10a1951acf8f8ab7d2ae6d186f409. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ace3e726f0efe1b4eceaeab49f42358daa80769ab8e2b516fa2fa6e967793c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBQU1100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc92023bde876e50481ef55ad1ab696b15b1e3f6a5a76ab27badd8f5388bd0e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc560c2f63491097cc36a6fd3a529280394f331742fc0e2e4f32025740fc341aa. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2667a413c7b06544b1b4699724be720e9f73ae298d1d2285242bba2abc84eb0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaee5232b956b34da2073d92de3cd3bad49ce577b5419d1627a5f0f77c558f0a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:20:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643c780ceff9a549fe2d96639a7da69911337af9e93a78da442c25a9ef7c5237. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c39e736648c2a93e2f7868068e129fcd86c90702a9c2f59d52dddb289a1e89. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T04:59:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9d9eef462a2891bba6bb339bf0a11db2d3ae570c28cd0dd24b7fd20d317ea2. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2200585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a90b132052f0f8474195746f9610201939beb3891b52e77e3a6d82b8eeb5efb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b865117eb8c61c8ff94e5ec4a8884764060edce845312bcea82a8061ff5366. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:46:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4493ae0634c3d31ea080b3ff58c72efc0e04e9bda3eff3087f908b23c963d6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a26bc97616e99ec65903615da7ab061a828276cd2c8f2d1bcd8b7e4b24b8f8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9d4355873ad4dc9a751d306a326ea7728987c20399002ba242ce1d6e16c275. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:41:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde838f0110502828f497c56bd73ea0db40635625fda652d5077b7272c4d03abb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c49294e87c310d4e3837599bc261e9561fa6e980fbb848a56a8ac81ed27e8b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USATO2300052.
Broken Hearts & Dirty Windows: Songs of John Prine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc50a19ebb76db0833cf4f7f03c30bf00e5a85cc9b7e765889c256984e2e35d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2A1004211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4accce4b921d7ab10f853b5df5e129b49113c7e10c894458e2cd92a56db5991d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDMG2023705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad98a22355fcee788b8ca19bca79d7e32bc42dfba950d9739ae45cefbe130d1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51262086.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch