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 0x9e686421b0d495dc06024fc1ad8e691be68ba3b7151211fd69493b2a3b1de694. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cd57e5e-4cd4-4abe-9159-4bcdd3910999.json and https://artists.proofprofile.net/proofs/artist/9cd57e5e-4cd4-4abe-9159-4bcdd3910999.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 0xc53c7861d76932984e90897ccec5b9582d1f0ce0fe304c4aa3a92b78086133aa. 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/USCGJ1675748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef69d38b23e5da16a686fb4468916f301d44f43e7d549c36a895e9e24391fec7. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:39:48Z), 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/QZNWY2285026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c5a83450343721ee64205e62bc5d5191995a43cb9015606ea4ed9d0e5a0bb8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWY2285028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50412ea5c9d9fda0fa59d76c06d48b1dee26dce2919c21521d493fadc3739254. 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/QZNWY2285029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9d56c8c06b87a97025c0808171eeec82c6b4bf803d75d1e7c03f11a3920011. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZNWY2285030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f9eb241cf94a355d16ab8ac507436d8c02b8b8a3726f1c81e2f93edd10807. 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/QZNWY2285031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4645fb8c0d2ff14f96778f02bc30beef9d6b11880c2933ae3a973d9b9f727a0b. 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/QZNWY2285032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac46c02858219f9c32aedd1ba44ebd656c97f1e4213926c9c86e7249fe2b1445. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNWY2285034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d833d4ccb0c4d6b37a0b88f644532dda9d9d3f25b2d0d36dcb469190529d4be. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/QZFZ61925401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b8b336e0b05da9504d536e688d690569d597edf1e1a1151b57a0a21cbcd161. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:12Z), 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/QZFZ71916598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d11c7fab3aaec228985e401c23b3b31b158513fbac9ed5fdfa454b9b466c3f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZNWY2285044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025397ea5e4a3a54297bb8b2ad8075f55728b7c6491bd051802e09154596d451. 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/QZNWY2285046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac8ef9eb7f0d6e836dc16e2d341ad262c73e14b76f61c701b42d97e67d9cb9a. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZNWY2285047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8b7cc6d5b50a64be494c4407884ea28deb2cb53903b2c29cf07edecd461a53. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:34:44Z), 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/QZNWY2285049.
Hoy me quiero cubrir con la sangre de Cristo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f795c6d2438d9f44fe91d5a91c208905e979d25a5cd05593b7128a4ce1a574a. 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/QZNWY2285052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5baede2c12ee7ac656c1e358e1a3554e09787f5dcedf4098270dc326ca62705. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:52:34Z), 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/QZFYY2012865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d2a15260c7f62a1b0d1758910d535990f08c416bd678aa9111d83a51395b8d. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/QZK6N2061361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2695d71965609fd25448049f50a7ff3d93b581a99c540e93b2ef7d9c808aa487. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:22:08Z), 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/QZZ7Q2464546.