thumb|right|250px|Performance in Pontevedra, October 2008 Hidrogenesse is a Catalan pop band whose members are Carlos Ballesteros (singer) and Genís Segarra (synthesizers, also of the band Astrud).
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 0x793ca929ac8c9acb985b68fecb1e09577ef495900fe49899cbd52c0760b59241. 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/b2880880-47ae-41ca-bb5b-d16b7d69f507.json and https://artists.proofprofile.net/proofs/artist/b2880880-47ae-41ca-bb5b-d16b7d69f507.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 0x111432731a468d35a16bf93627366ed662aae6eb7f50b5108f6ff72c4acf7983. 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/ES05A0800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28202a11ad5b5bfc4425c2b784a002d0db893f65ed0939ea6417a4e380c3849. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ES05A1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92900807091b1b935498fcefe3791437fa595b736cebf706df908fbfb0840f50. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES05A0800088.
Això Que Sona És Nostre (Hidrogenesse Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c2464c9fa492c3c43f788c109a5ed8d84e08a02e914449a1ddabd18e42da5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ES05A1900003.
Otro Lado (Caramelo House) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65393de8a61485d062d2680c254fcf29c756a008c25d59c8ab1bd2264d5f3d95. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:42:53Z), 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/ES05A2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a20432db2bed404440148ccf19099503cfce2a5aeb43fd786082472864fb0. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:24:36Z), 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/ES05A2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcaf52bbe18b7f919d555a85c9cb2034b67fee7c6c5b6e702a756201410957e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ES05A2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb245be6d15c249fa061292c62e0b2feb17fb4d1014786ba84d3b7bd44bad3fa. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES05A2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65887d1509f65139adc935afa9f151b8357982f56c6db7f2f8dc8eb77ca4db2a. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ES05A2300034.
¿Dónde estás? (En directo - Concierto de Año Nuevo de "La Mesías")
Escolta la tempesta (desde el Templo de Debod)
Escolta la tempesta - desde el Templo de Debod - OST Daniela Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12350404f28fce3391c5a357888ffc6e6145bf71989cca1771c27178835a9dd7. 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/ES05A2500001.
Impossible de ballar - Escolta la tempesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d4092f1164de9ace42b20473a6d3f0377bb845c078498590e1e4b858189793. 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/ES05A2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022cb07f75495c8bd096a34ccfd1471387f501e23535d1fecd7e84c3ed45cf24. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/ES05A2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e483f9648d36bcab57286cb5b2716daacc5465bf6ffeabc855809bdd7fc8377. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES05A2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fea32be1d068891b2a1a453ff80c27bbb881a84b265c573ca61667481d2c5b1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:41:38Z), 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/ES05A2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464cbd5061181b41451da28c72dbf551a9e18b214e22e2f4069c96fde814e317. 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/ES05A2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022cb07f75495c8bd096a34ccfd1471387f501e23535d1fecd7e84c3ed45cf24. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES05A2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094bb4e27474608718bfbd9d60af47d9dff68ff6bbc96103386147e2ef6a6b18. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:45:37Z), 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/ES05A2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecec672958e592a2af2c5cac57b109552bbc62897522ad12f66d4389efe6506f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES05A2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de5eb805275975815c79c10184b0f3d648d60f77907b95a87224d8dead99727. 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/ES05A2500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5801ea6748fca52e673beed9c09aef4a80dd94846d9157782833f29095ce78ad. 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/ES05A2500005.
Viaje Satélite Alrededor de Carlos Berlanga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a47c01571f5418e3d4f65e1b84f4f4927e0b58b2e651d5b0fc40d1229749c4d. 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/ES79A1004403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d79239dc2c6f76c2da8f449f9f32164a32643478d9b62a03ffc251a36bb74c9. 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/ES5702400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb73c27aaafc68079b84716623ee874a6723a3729920734420f354368195a4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES5702400158.
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