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 0x264bba9fd85f40b274012d95864fd576a2b219dbc26729d867142074adf235e3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f069514d-75db-4932-aa38-441ec749f8e5.json and https://artists.proofprofile.net/proofs/artist/f069514d-75db-4932-aa38-441ec749f8e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fins l’alba vs. Contra l’oblit (Lo Puto Cat Remix)
Digues què faràs 2020 (Lo Puto Cat Remix)
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 0x9481a586e86a31ef00933236947fccbf1007b2592cab8c17899d9705be468174. 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/ES8022000285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213a796e2ac8c1eedd201f157b13455daebc40c68ed4ae09b1668ce1e7b7fb2e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBSMU9170764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa432359b066d0136cfcd643809e6ec5e19d713f33877001885c59ded443c5e95. 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/QZDFP1876680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caaf4d5d2096b4a15d403969473941165f19161dacfbf1b8abfccfd94c77185. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZDFP1901326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79529986f33e0f5b5c73c0f431bda26b40123f0db3a5a98bd847eac8d3b2caa0. 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/QZDFP1911943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee044b9110c34642db3454334b599388f9db0d4b4a6dfaee63db49d2d1ba55c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDFP1988543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c613ee9051fb84eebde761d54ecdaf6749f2059d1cd5810d6e650c01e78b1c. 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/ES7312200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ecf35f295a62d7ec9bdc89cb0c2f1ea20c9bd8216d875277fb61c0ee4eea22. 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/ES5952206781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b149a6f719d673655580a5e6db5ea8e954430355c0d39f9099a4e9803e5c91. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ES5062208901.
El putu Ball de l'Almorratxa de Gironella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1c522d82b6bc607428294865f173b01ce2563f633ee61a84e2c72b015daf5. 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/QZDFP2105394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c552f77decb75b3a3670f28cb08b65439197b4b71afb35ac4cdb74caa1f241. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/ES40D2400483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc654fafb7078b1181446fd64432934db531242da1626df990484ff4f041b7dbe. 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/QZDFP2160800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d199dbd88735052934740b3bbd3845c7069e6972a3084b7ab7a2112c639014. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:18:55Z), 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/QZDFP2160806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec677c618dd4f22e25f5b8152c682a74cbd58a3a359403f0a5d83984e2729b88. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:18:15Z), 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/QZDFP2170535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d55fe7f16e6cde51fdcaa99e37a82141622d2cf872147d729c3c66e6e2d5018. 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/ES5302171838.
Música Naix de la Ràbia - Lo Puto Cat Remix
Música Naix de la Ràbia (Lo Puto Cat Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60772f20d8ca47e3110a41c1898dc6de2a3c0775d2e6f5ce10d91a4e7736b44. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:17:38Z), 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/ES11D2100600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd585af7cd55f68657fb27dd5f8b87bba1b9412d0c6ffe3cff581df0a6fcc6bdc. 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/ES17D1800461.