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 0x6cef0ec9fa7eec0d219f1df19fb98fa3a08577abf0e140448f70f1e125aa04fe. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad624445-b6b8-43b9-9210-f1811340a580.json and https://artists.proofprofile.net/proofs/artist/ad624445-b6b8-43b9-9210-f1811340a580.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night Owls 3: The Chiropractor's Goldmine
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 0x8ac964539e2050951c337c01aec444f3a228c4fa2ecf0e9b69849bef06882b10. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX0801983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0396c5e6a0f2e00ffa997bb8330618ec6757b1c9cb891cca79c5161230f027. 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/USACX0801988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d444c751fc0e2a29eab5016524057e1857c156d9224da44a3ea6057a85b409. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX0801991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed812f572be422c7f5a39bbea078cd153cdf452ee8658e2c62fe79c18f30433. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX0801995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dafaa82a0abc4f1266d876ae02eddb8d0112da922f4a87f37064200d0d57719. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USACX0801994.
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 0x62fea5b7a5f7d8655aa9a9b3eec1ae0000e4bba806cb9559489d363160f4d79b. 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/USACX0701262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b42f39d57a4b99681a541b98e64489885a4c0d548e98cb585651e7aadf1c53c. 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/USACX0701263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb06d67636a6a30b2c32b767732e90e996738a3f085aa7b7cdcfc99624bb2c77. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USACX0701265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0441dcaa90f63186d8877116c825b4b101af96b33b406e00f1da234f7cbed9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USACX0701267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9ec964831f0e61e7197cc41ebe9d3cc43acc9ca6c195aedaa86d5e295aeaf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USACX0701269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ec3820da8b63c3425dc9cb18f3268a1535212139cfc2aa143318781a5cb9aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USACX0701270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8b6dcaa32788bbc5e23c6d858039cf4e62c6a591c109b67174481013cf89c9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0701273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a49bd5406a01f11b292ba1620dbfb227d62953ebac9a161001da003abb32b74. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USACX0701274.
Battle of Little Bighorn (feat. Def Shepard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636550d474f74012b462f8b966dd446af011aca513c5902725582cbb1597c087. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USACX0701272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13954928eb328e25ee752e72e1ddb037dbcf438d6492be5ca00f5babd2e5ecc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USACX1003361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2aaf2384bc3671588e47413579187fd09bd8a5992052a1365cba8c4fd64e24. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX1003364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbbdcb588a7c870824f68b670d24213b1607091460d88c4f1cf0d2761496720. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0802800.
Goin' Outta Control (feat. Royce da 5'9")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2ed4b268e12369e0ca733d447973f7e8c438316584040d2e330618d9270bae. 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/USACX0802802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e00dad403022a811086e4e35eeac046c36e38e4a96d0061caf6b3d21468f49. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0802804.
Build It Up (feat. MaxOne of Sackcloth Fashion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5bf303c7e51153a54c6353c74c5a059bda785e539f37d7454a1b09ad040181. 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/USACX0802806.
Intercontinental Grand Dragon (feat. RedCloud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d1bea8b45e661385180c906a8ad505daa9d39b21f90c1d6f604bc5dfa74693. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0802813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cffc2840626bfccb988f6f16ebeb8b09af7dfc597a049f2ba6df2c8e6171bec. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USACX0510150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c31bbf51060e77ea480ae13ac4d59b032e81e65c59bb216d767bd8164077c14. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USACX0510151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7605b9aa1e96d2006b0807397a0266e05355a152d60c2bfed9822a828043f34f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USACX0510155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798c4da3fc59a2306fcb7dc7b1c641bb39a734801770ae587659f4b9cde6f029. 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/USACX0510158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa2917f2249e2aeb71793e04160ef33684e470dd8b0f09e9207e870a4fe8401. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0510160.
Ridiculous Junk (feat. Braille, MaxOne, Man of War, Gibraan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62781e3de75e2bed77facb497a8d082b0c2d7a39990ba71e138a40c51448adc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX0510161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862a19af08dab178501477171d4d3fba0bb15bc319c1d171461337666defb7db. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX0510162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02ae08def70e687a9f7bb52dc88620fafff900471d13f38b2ea1eb0a194d6c3. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USACX0510152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1009670e624c611af05c1ef8025bdda24155fefd968a458346e88c89f120ea72. 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/USACX0510178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425f70888a6a81fc77fdb3bed711e83e1ef7aab9634b637624972197eab2e966. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USACX0510167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dacabdcdf43d13c50249a1ea84d20313650e2189d456f86ae96548f9a9423d9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX0800191.
Don't Wear It Out feat. Grits - Journey Through My Mind Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7018b90f1bb35dc9248652f906203a3bbd9c27de8a182db337dddebc060e48b8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX0900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e815c95558fb68ae88bf2b6c81081172a27b640e8a06fbc3802bae4b8eef15f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX0510901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d4644c36db3d7c0e601b66c3117412148e7c938153224bf747e6e60d54d303. 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/USACX0510085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d007edae3d0d2c26148f3d32c2dff87908235184740a90cd42329824a28c69. 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/USACX0510211.