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 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 0xdfcc8f2572ed85d37e414b1f8ad3b5d86f97de4d6acb7f231548ca462c7c0312. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77dca15e-35bf-41e6-9d42-2a402df0a604.json and https://artists.proofprofile.net/proofs/artist/77dca15e-35bf-41e6-9d42-2a402df0a604.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 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 0x5cbac3f3aca4c5180ddc5d20d42d0ad7eb0101416053e5ecb84078c3ddc92bfb. 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/ES75E2402923.
Como La Traté - #DiskoverStories (Acústico)
Como La Traté - #DiskoverStories - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845114dc345c906fc49c2098fa02faac8e066e9e4e16431d6fdc9232d4ae5da3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ES75E2401580.
El Consuelo - #DiskoverStories (Acústico)
Título de Santa - #DiskoverStories (Acústico)
Título de Santa - #DiskoverStories - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22652c9a38afa8e8ebb4ec303860d0fd14ac448068bd8a98ede3f6abf90edbe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES75E2308544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5e47877a78ce5cf47e9889c5084839fb3bd749072ae00d9dd89b4feb9c13a7. 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/ES75E2307948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb325086b9c342bd916b42e129caebbfb60eaab6008597a43ed1ab1aaf794bfe. 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/ES75E2306512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb739b74b678763f038def784ac7cfae5dfeb0459ba4abaa21030c204b576f00. 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/ES75E2305691.
Contando Nubes - #DiskoverStories (Acústico)
Contando Nubes - #DiskoverStories - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd55b24def8757fda26e21ba1a24e2a377290dc452f381c655b3c699e73601a9. 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/ES75E2303414.
que cuando tú me miras - #DiskoverStories (Acústico)
que cuando tú me miras - #DiskoverStories - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a857775df8ac4f32ebde1a31916f8dad7dc8a71609d696be74f757dfcbe23. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/ES75E2301702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36bfd9c4a0aa2ee44c80f70e817674a09b671c6aeb9ebc1c4f0c3987a328666. 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/ES75E2301086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbfe3a90e9569c5692d952c4183271d4c9011f456dbc321896d00e9dc7cb58f. 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/ES75E2206656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea7a4e1adc8f9b65804c50cd33f205946faed709b9bd9107ea25e1127413fc9. 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/ES75E2206027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d775a6a50002b6aa0e7d43270bc549fc8741c903fbf4a0e5ed13e41cee7ef26. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZN882265039.
Friendzone - #DiskoverStories (Acústico)
Friendzone - #DiskoverStories - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b88acdb229c80b732bb6eaf6527f0626b93a9d9433ff8c46b341227d2010f8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES47E2007232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3960af50c57c019fbdd4252660f707dd7cc76b5d8f41bb20b556769237730354. 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/ES47E2004949.