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 0xb51539c5d13317d69534ff420ef67cc0f2f66fb63d3f66199cebf3d823baecd3. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7c39723-0084-4ff0-8773-289592777b99.json and https://artists.proofprofile.net/proofs/artist/c7c39723-0084-4ff0-8773-289592777b99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amics i referents (Directe Al Principal)
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 0xa2ffa870a375f77b8b175bf83568cb2dff9fee3d6f7b74f8ad5a522e7c2224bd. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ES8022200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7f32ad522e4f8e3cbe3a157e0042a5a27667f0791d883fe91b182c92e9b9d9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES8022200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab1d179e8de8a3d3af71c2b95b2c21c456c3ae98ff32cce28938289aaf44677. 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/ES8022200070.
Que no s'apague la llum - Directe al Principal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda2d4caa116c02db1e17ea51b9ced4d10bc44bc8809ff08ec14639c7cd4966. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ES8022200071.
Alacant -per interior- - Directe al Principal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766c2b42ad85db47967ead23a464de0fa186d0d7c600dc3efb78d003b4bb1fdc. 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/ES8022200075.
Història d'un sofà (Directe Al Principal)
L'Ovidi se'n va a la Beckett [Hem d'aprendre a fracassar més i millor] (En Directe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b4bfcc820f55a1f312432d06f017b73481965a2f743d4e5ae1a04247a69165. 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/ES8022100042.
Un sofà a la platja d'en Goixa - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cecd137d75c78992d8b096aa41a72ce48bf6c849aa607d6dba03ff0501956eb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES8022100043.
Nina de Miraguano revisitada - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc25dd77f4842f514f2f94d04226938abcbb900b06ec01eb6a7ccacad803aa63. 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/ES8022100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39c3fb9be3367a52972f63bfdbf328e43f59f8f88959290b65667dcf6c9b24f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ES8022100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a1913693c89da4d3987a1fc14cac7b6efe04ad94d86ad09de428cf068b9c4f. 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/ES8022100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777bdf120877f8b34e4323fb6518a48051ede97cdd16f66b717398afe3b0a6e6. 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/ES8022100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942a54e3bef657daf484a83836caedbaf128c2105b0049a044046c6461bfaedd. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ES8022100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62cf82ec4906cf22c22bb25df5bad2b65517fe2a04cb2a4d77e2d36304bc328. 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/ES8022100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb7ec3c1cfcb396f5c307a18d80c6940505010d89ff8c355bd75a1ef2b609a1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/ES8022100052.
Palestina, entre la pell i la ràbia - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c90af480395cafb20850d063d244f841a58c909f79f477e724d6afb978206d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES8022100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac73ac181a2f3a1f7644eea3df7815212e96d41505abca8386c80897d4237db1. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES8022100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10af7a1f8c2ea5213d04f557539f4c7e99a2b2b53780ec3caefa63fb7eb36bf5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ES8022100056.
Poema del sí (i gràcies, sempre) - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e5955ae5dca1384b9c71abb3c46a90c06a644aaf607c2be589ab665aa83e7d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES8022100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6c43b7f1066bb8a39748d1bccefa847eb689eb7edbfaa41cad2bb73e539f70. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ES8022100058.
Fora catalans dels Països Catalans - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62789cddb26e7abe5d93116029747489a38f4d2f2182e0263a1bc8fccdcc6693. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ES8022100059.
Serà un dia amb sageta de foc - en directe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfd48d0e1f907796990644dd4d6d935d9ff519f6057198fa7934af63f534e85. 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/ES8022100060.
Un sofà a la platja d'en Goixa (En Directe)