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 0xf9b267b37271c2a607cd4bb3974481023bd722db78cc05afe8dd4b91182347c0. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/758b2a58-be7e-4882-a3e6-067717d9457d.json and https://artists.proofprofile.net/proofs/artist/758b2a58-be7e-4882-a3e6-067717d9457d.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 0xb28d5245cf7060b61456bb00dab61673a25ccd508b5a23ac686c91d18410a107. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZFYW2031952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2085193b1d18baa4f6fddeac2bcf641722ccae403dec69cc4f4bdcdec423e152. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZHNC1971896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2177336cfe74f008c98198dd23dc81252a6f03b87dc17fb01491e52b173a7012. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHNC1971897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1f682d1dbf54dbcbf3b440f8701df5237a99c33df426b3cf3100b3801befb1. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZHNB1952526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568f51247f8104ee4dffe46ff574b087fb3a64c8bb9bd877d499c32205b03621. 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/QZFZ22266597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3258cf1b4ec2dc78d1f49079b42f9114f11d16d1fc3b7319166b4e7a59fa6423. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZFZ22266599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc95549ee03dd3a01d071a1d7c1de07fd1fa83bd088bc9c29501905aaf12079. 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/QZFZ22266600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae7768917a7f6bb30e32e135cfaef46d73d39620c4d351b62118d2d254146d4. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZHNA1933252.
It's Not That Part of the Movie Yet So Stop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c16bcadf75ebe10f4575521c808a9dd03cf00b162d9145d34df376108caa49f. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZHNA1933253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc89d875ca3fc7f108bd43ff7642524f2ec026f167b5f19bfcae99ff1f2a50f. 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/QZHNA1933254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4a37f6ac0eb8cbb5f6aaa8ae457c96838d17d6f0119c84d1a0f2abcf550fec. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:25:20Z), 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/QZHNA1933256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e50b1983a5d01d9a48c8ce0bc4caf730bf0cd047c335179cbb0b04a99134eb. 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/QZHNA1933257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dcfa2cee8d5d131487c0c7a7967361456551feacfde1c1d06283c68e953b00. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHNA1924958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1775f7e688b61dc0402c5e1cb076e77f60f07104b69746070937f6154764cdf. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZHNA1923941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e33205c9a178e1ae9a33d6110bbfdd103a61d23551d2b0b066bbbad8ff9bf8. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZHNA1923942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f21cf40983061fda440aa815e845a41c9eecbf16f65a4c74af4738e1b3fcca7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZHNA1924974.
Burping and Farting at the Party With All My New Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1804c93df30c6e27e20c401652f5966ee95551d5710ad921ce8922326a8341. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QZHNB1952521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d437a288294b741a756cbedd004c2d8778482c0b252e780582b5932b939eb59. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZK6Q1984440.
I Need a Word With You (Me Again, Making That Sound You Are Allergic To)