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 0x6e7104b91f3056c4c82e635edbdbf9fe27f0c54cc8905a6142b9c61e201a52f4. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9a2d98f-a4e3-49c5-9d5e-7484ca65eb30.json and https://artists.proofprofile.net/proofs/artist/b9a2d98f-a4e3-49c5-9d5e-7484ca65eb30.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 0x096551630080feee147e1e5ab462e4e54c1708fd50da434d031261e9c49a5935. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZW9L2269558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14965d4827c98a75f3ebf57a36320f61e986774cc003725083b141bf3640b3eb. 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/SE6XW2569177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2869dc338a159a57608caa64014bce745fb09be273c7a7bc88878bad730c77. 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/SE6XX2535937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5e128fb12a098cccd71fc4b080f3ba5b3655ad6e1027f904aa067a1562d00b. 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/SE6XX2535938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9313881801e20549c26785879fcf54a938f32e009abeb8ac2e0840ae0a441741. 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/SE6XX2535939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716c86ed588034f32e781055ddcbaa083537e5cf134fc527d61330edafc670b2. 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/SE5752321393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bebd0c7deeebc0d785666ca1836a0ccab0f3ead4a3757ae8e0c7685369fe83e. 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/SE66N2224287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae486e8557fa811b2ec6e1e08647c5df482ee752818473e675ad747d26ddbe4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SE6XY2218330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150313c0b36215c923470742dd181d0fc72174e7b7edbdcd59c145a76a8e888a. 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/SE5752268881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4f7f63bed988997ee12c99864d7435133ff196620184bd88c2e74e56a56385. 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/SE5752268882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1d0721660743260611ada5bea3ed52f965e3b30d399c5d50c2e05ace3eeaca. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE5752268883.
DEVORADO COMO MARRANO POR EL MARRANO - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06917ba04dc0a41644b4ab03b25a352c4433e3bbf099637da03c64e92b2aa11. 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/SE5752268884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58f6d95270e0b4608278247362b0868fc7ec088e144dfa71216666cfcc4f272. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/SE5752268885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900f260e7f6948a7b7e9edfb400d9ffa4f076d9b09b3f883ce3cb499eef138eb. 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/SE6SA2144738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7514df0afe7383786a5abf44410792fc7bd18a25ee047da6d1fd41c3d05c3651. 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/SE6SA2144739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3275bfa048ebf4fd41d07d8f8e1bcf29007fc7da7da1610565f9956b0641ee5. 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/SE6SA2144740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e86af575286e2bdedd2a6b17d861b75f587a3d07841e509744963f29ca7606. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/SE6SA2144741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78453528e19382ffee30336896cfc151b7a854cbf831e282b8074cf94f11d004. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/SE6SA2144742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7366954ceb8237f155b43f71bb1e06906c6835437b931f17103e6bf37b03d0aa. 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/SE6SA2144743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d0a9fd2f97cc8df3987ed833c5344d301b4cf7529bfdad14828f3e133eb23a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZK6M2554554.