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 0x3d4bbe6683888f7b21e58e9bda43ec49b708558c1469137f2e1d692efa401393. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7177e2b4-bad2-4e06-8f72-662fe5f2e95b.json and https://artists.proofprofile.net/proofs/artist/7177e2b4-bad2-4e06-8f72-662fe5f2e95b.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 0x4e1332158fbca2f75b20838b5abd716b1f3d6b5337d4bb7adccf53d791990a1f. 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/JPP321700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6d623debfa738049a18703ff635c3ceedd67368fd252c36390b9b46066e628. 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/JPP321700178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c686590325c6b7d44b5d49814a64e45caaaf9b01aa9c461c1475bd7bb960c6e. 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/JPP321700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93be91b969439643e9fbcc51321c579f308ff738e0d1575ac87c40a29c5a1f32. 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/JPP321700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63768b480675ab25439f079a55619a2a84927405c083b307d96ce2dc412ea47a. 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/JPP321700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02795e1000e249db472c4c7d205aa048585d183e2c3f530a7f976960ac3f6c9. 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/JPP321700184.
Moments Of Clarity -Jesus, Joy of Man's Desiring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28880489a73ae971d10a43de824192ed5dc79d1d82cc130c855b14e8f20276e. 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/JPP321700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f672f50b6759bc273ce54310fe768fdb385ff94a93cba6893d56acf4c6e1fdc. 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/JPP321700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84f6da0bcaae816896642fdc7cf6c790c0b39b673b6aeebb9e5693a02be3617. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/JPP321700177.
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 0x21ae9a869ef4c5e91d34fed20b0b15b081a5591a9b44dd2ae5898bb5e858623d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPP321700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c25af968e1c963ed01e486e815a80eb2c9a7e0a7c14f992048138002025defd. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/JPP321700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592c91d2cc0a3c5bf1bb78af852ff694e4f7891495742d4bed4199e4c1339164. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPP321700187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc3f6fe80bf9c62b36007562455ea94506b7f6630b6efff32715b551fa96414. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPP321700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702a885ef2b7d9f5578e4f5695d829d39ec30fab420945d150c64fd5efb8bbbb. 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/JPD731501357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2172d7c169e0bef0b42782264ab4cc8e63863b27a0c11439d14c9b1b04a588f8. 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/JPD731501358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4345af2b5bf71838d32795e075e15ba69dbf94750ae806aeeae4b2efb4ab519. 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/JPD731501359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd829dea3950eb533cd8da9a49d320fe713d7b86c81902f04c888fa08c65b292. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPD731001082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65fb59976cb4c14a0d21a2afd512a07414252f75c01b1d13e3b423db3374c5d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPD731001160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2fe45f7767d673c85c500c5e41e303fe07637a9d1746c4663f766395a5910a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPD731001159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818af9ac659aade597335488b9746df6bcdd5d35f6cba145b830b2d3b3e9b822. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/JPD731000543.