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 0xd6d3ec36c97e3981c377a7cd11f1a488b71c323ff89a5ba2d35ee8d592f00f70. 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/c80ea332-01d8-456c-a826-26b028fa9d57.json and https://artists.proofprofile.net/proofs/artist/c80ea332-01d8-456c-a826-26b028fa9d57.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 0x793c42da8d49506a7f6ea08aca06d472507f8ecca839aa6704840bfa3ce11604. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEN1992954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ca7d0e7ecb68427531388021b165481acf61f03a54b5c87ca41337fb8d1044. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAEN1992959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc1ae550bb086c3d122e917e574d24c9698079c2ca73a18f877b28af7e459f9. 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/TCAEN1992966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0152188b71dc2dad0e5ac01eb5dbae7f9bc6a1fc3aba7459487dec085c359b3. 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/TCAEN1992971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b0080bfe687ee0e747d9319807ab24fde31316a3acea8d4655b4f73854df2f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAEN1992978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2c4ae2695acaf05f1851ce4dd07537c4934064d3392d00d22ec36c41724d8e. 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/TCAET2028287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529bb216d6ae9efa01d1a31104d004e117539c8ceb6a24e7ae6c10e1e25a6205. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:19Z), 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/TCAEU2007661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3db30106a9983bee6083d36067376692c40ad68f0151f14fba96aaf3ec6317. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAFB2063088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4f9d53c32604a5b187c2a58595dd36b86264e2932ac16cc65ce20c8d13310d. 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/QZQAY2149274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4f9d53c32604a5b187c2a58595dd36b86264e2932ac16cc65ce20c8d13310d. 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/QZQAY2149274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be022fd88f36da00c5847edf82bdc9a7c19c47f157dfb503bd00a4162adbe6. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZQAY2177281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be022fd88f36da00c5847edf82bdc9a7c19c47f157dfb503bd00a4162adbe6. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZQAY2177281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eadbc50019e040dcb47ae2dafac824c07280adb13371605b4bd487632deb4d. 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/QZSYP2147706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020658404ae92b6d1cadd960ec8e75bf041e3e1394654f6e714608bf1bf0b3c0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZSYP2176814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac67e943b1b141dd6030a0b5484510bdcfbf29103d1332833b3911686c4b33fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZQAY2243503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aed643ac7d4cd6a2256eaff1f4cec48b08317cfa50dd24deefbca70d7f2755. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZQAY2224426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eead525fffd1b61b518bfeaec740f80c754b9d87cb048770c1454f5c9b1e724. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZQAY2258308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389fe689d153594503e67e7bb911630889eca319a36c95c6b65ecf1db1d5cdce. 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/QZQAY2212136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed79b6b74d2934676a186e1c4240c57a302431b0e4e2710887d245d9809ab3f. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZQAY2279473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eead525fffd1b61b518bfeaec740f80c754b9d87cb048770c1454f5c9b1e724. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZQAY2258308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe678a3d651b1036916fabff063e4bdb47efd5ca66ff9e8e2198284fd377af155. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZS7J2259456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797949e0e85c860e70e14a9ccd809c6928d9926d9b85db4df838d76989a9236b. 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/QZS7J2272225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dc70a32b941f256c72dc6fb9bfc9a0128210a0ea1729bd990d600bbba25817. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZS7J2268803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8203da1a0ec0431debaed0d986695c5061f4340b0a175029cb7f6d2aeb615a4e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:36:00Z), 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/QZS7J2288702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797949e0e85c860e70e14a9ccd809c6928d9926d9b85db4df838d76989a9236b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZS7J2272225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93712bb23bcf01d59faadb4bb3479a1149b78b6b39d42982f962a0648237c2b0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:03:00Z), 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/QZS7J2221423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df1d19f5dd5067802c9131b4ec7ecbf2adf629c3f26c6a68d6cd45331b6202a. 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/QZTLA2304102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dab32fdf18aacdfa8e0396f6954ae1cc251415a1783823d9de99489f531e71. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZQAY2329618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78299f0652e3a9270e8a8a85fd32ff5fea2c4e52ccdfc4b3363fe07ada775116. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZSYP2359112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af6157a85b4ea16e7234a22fb1701160cce269544027d3ba391ae39634cfeff. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZTLA2430929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41803cde2fbbd307f2e4a80b3457bba7c186a65db84f54af37a0c4970143ab9c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:24:25Z), 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/QZS7J2431899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244d73c346e0a5415f9ad57547e3492df6ff9b77aea3aa7ba799b0e3e3200234. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZSYP2479772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1b9d1a29b9159e596235eb765b1ffcb26a01e0f272294980093ca61f6dd85b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:32:29Z), 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/QZS7J2492517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe622be3a033b34bbf675f218da9d6bd30efc05b9670f257f6dbb62a45c43cc67. 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/QZTLA2432178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0322c88904502bfae3db314bcf686be179004b72f3dc91423793b69848858bf2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZSYP2484183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2bc474ae6d3c5acce5565fc485189a6c720e9f8b426088a851a22ebbdb7541. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:37:42Z), 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/QZSYP2470236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c112dd5fb7419ac0a5cd686b91147b1609a120b3e3dd572e37e5cf6fbbfa7d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:06:33Z), 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/QZS7J2419470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024709b90ec620fb733a86d78b63fdabc5991ed62be91f368704d01521796936. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH7819577347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedee1ce090c2721ce1168e22e4c017d5d02a509526b7bdbab43d5983f2d83c52. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NL8RL2501722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371a483784d30ddb68bf0d05231f1b97a4d1734b2848fb819933c9db6aae2408. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEL1908051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185335cea0a9c59d8415e76ad39a6d94dac86d47c2b93895e70c257a19a74206. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMWW2073337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e68f3d693ebe9021c233dcc064cc8c21345efc86a49ea98e467a9dc44773ff. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZS7J2255743.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd23b5a3fa366f11f54da2531757fc847dcca0e68ce445f122a0b3ec7a5a5a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZS7J2267233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b8edcf8be3a77e254c6ca659f20192535546abfe0332a5b36d99ac8c6031d7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZK6K2396178.