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 0xd24e19acdc47c27b540d1f1541e1e131d0f6ded6c258c25d424c22965c8fdb1a. 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/e598f796-dfcc-4b0c-b5db-2756ef67e558.json and https://artists.proofprofile.net/proofs/artist/e598f796-dfcc-4b0c-b5db-2756ef67e558.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 0x4f9bf1b9ca6337358a76e72da9727467331f89eb0eeab927ef95201e8c8bcfea. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES5770600848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844168cb939ac9939d0aa3748ba8d96ba1739f7632b9c77959f0339a1e7838c8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES5770690117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6168cd6f0ba95e6977a12905b6ace41e36caabb97515fda0e34ab86864737f61. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:03:49Z), 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/ES5770690484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cfab7398ad4e23d2ca446ec06f1f2569a14b08dbcc31808e76c1153a9ae3c2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES5770602005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cab97a74350fac86a4b21dd8b1b97b3b02c31862c93a1e47f769dcfdf83bce6. 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/ES5770602006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af994be85b34e9f576a246ce16854266397b52258c3c7e6f485906f501069a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:38:53Z), 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/ES5770602008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb047d20a22a2dee98cf4b7fa9c3b0929201380f9ba735ccd2a00f5e71424e7f0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5770602002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b3d034c10bc09cd80c5555c744e4111c5b79defe062c43310be5221a3cc703. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5770601660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb91d12301965a6952607fb2fd2a37359cefbbcb9198896a736ce898b55dafd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES5770601996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2590f0e833cafc4c652e7231310645ca21993795255d81153cde44149ef55b1c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES5770601659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea19e02ede85c8132a554ce9e8da2ce4bee98d711e963260ee35fb31d527e69c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:54:24Z), 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/ES5770690032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18adc0e01f3144ac2186e1b792e841a2d262457b38d801849688018a4e310684. 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/ES5770690482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cfab7398ad4e23d2ca446ec06f1f2569a14b08dbcc31808e76c1153a9ae3c2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:10:49Z), 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/ES5770602005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4398a424e7a3ad36eb7685ae59f2f93466872e2f2a934b04b8f886cb782c9103. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:48:13Z), 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/ES5770690027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b208e3f727a71225886bc852c204f274b081d88f3f448812189333f5f84d13. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES5770601378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5239256543df76630f23f720342bc1280c2677d57ad1b8c735141b927883f0bc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5770690023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6168cd6f0ba95e6977a12905b6ace41e36caabb97515fda0e34ab86864737f61. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5770690484.
Mdt Radio Hits: Los Nº1 De La Emisora Del Remember Mix
Mdt Radio Hits: Los Nº1 de la Emisora del Remember Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0901fcf48e29e881f39488c3388192e6941a6fc50a56761e8d755b076fd8d83a. 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/ES5770605399.
Lo + Remember (Mixed by Raúl Platero & Head Horny's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730ddcbcc6c3f71e27612996b1e550035cc3915d76c22b3734425fdba43cce13. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES5770607098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5239256543df76630f23f720342bc1280c2677d57ad1b8c735141b927883f0bc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5770690023.
We Are Back! (Marian Dacal B2B Eva Marti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244219484c086e08aa51f0617714a630477ac562849ef2ea351d2bfed4bd1cbb. 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/ES5770601370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d2033ac4352b6def6cce65eca710a2e3928d955a8395b64bd39b4374da6c22. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ES5770690116.
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