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 0x93a2869d0fbd1e5ad775067295e5f3f1120781f68537facc24bae101d11ab7ad. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/074d840f-5c0b-477c-8376-638a4792f44c.json and https://artists.proofprofile.net/proofs/artist/074d840f-5c0b-477c-8376-638a4792f44c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mañana (Cronica de las Cosas Que Ahora Me Valen V3Rga)
Calma (Canciones Que Escribí Mientras Lloraba Por Mi Abuelo)
Algo me lastima (momentos que no tendré contigo)
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 0x62124af4a09c414112dbae419e9f50bbdc31fc1097adbf2c344900dd9486d248. 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/AEA3A2341695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d3ae3dbfc8a75cb4bdd88b6596c4bdaafc20e1d598ca70afc1274100add160. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:18Z), 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/AEA3A2223039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acca3b6584c7a0e485e7b8f02c9c885dbd641b8b67aa343ceaa579a07edcd34. 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/GXD7V2568668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54c17fd131035d3c61fd1eaa7ab254915f4a6f13aedb438504d80b3ba55f2da. 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/GXD7V2535504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62420e617a419f77f3b51b9d7955f2f5fb21865a1075e971f525ab793b8cb305. 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/GXD7V2541489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efe9b8c3643a614abd95f655e52022c45455a5fb60de9d518628345b16edafe. 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/GXD7V2583663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5721910c1fef876c94eea087cb7c9fdd37d05eab150968584d86e71ffb3e41e7. 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/GXD7V2539816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30fdd3a5dd1a1f47dfe79fdc40a75afa1ecb22a4f1e2cd46163702d3565ba5a. 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/GXD7V2480062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc507688619640a7772b747a26d735b7e880dabf39bda34e0a13d292401283f24. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GXD7V2565356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e28ac3ca70a11fa41e221041d1356d009975efc65ec23bd2a5631d9fe7ab88. 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/GXD7V2556269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62124af4a09c414112dbae419e9f50bbdc31fc1097adbf2c344900dd9486d248. 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/AEA3A2341695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3536078d3cd6dec59fc8bd999818c37fd5185f0164252498669500b70b54d68. 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/GXD7V2534395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090d8256fd61a705337928a27fd24c0ad7f4fb920fa264f1e25035e4194d1053. 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/GXD7V2516171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19c9adabb11482c38dac54a12715261ecc896565a417f51a76116355533dad3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXD7V2530341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1afec9d305214d6f0cac459cf5e4b7539883a38a66f7a5e935553d92b7748e. 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/GXD7V2545053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ad24d72ead1ae7c58791db4b4aec45536a30d8a20ac276f076cee9bfbc9e02. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AEA3A2198050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692490863714606398fba6be170b2c0bcd4e47667527bfd4a3bc05eea435845e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT5M42539032.