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 0x9f8c89d0564d06cd94d5c1c301149b2e71602f265ace1cca00dff4dda4d4747d. 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/d108cc77-4c11-47a8-8da4-5d8b5cd2e5fa.json and https://artists.proofprofile.net/proofs/artist/d108cc77-4c11-47a8-8da4-5d8b5cd2e5fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Relámpagos, Vol. 4: Reflejos de Copla
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 0x89a14bd04edb68e75e1dd1b7df40230f25e25a30f5d605e8d4492b6f59d604d9. 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/ES6341800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde2578ca4a6cdb25b66c1d0ed8e971ba41eae73ed2a7995944530ef973bb3b. 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/ES6341800144.
Y Sin Embargo Te Quiero - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d985203f740e020ebfaa91859f0628f5022686046721f5e22485ea824b59d9. 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/ES6341800145.
Echale Guindas al Pavo - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43420351bf8138c909dbc1e8961cdf16d31c3ea29b71e9d5750c220f79049b6f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES6341800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d3556f1ce2aaa2f88f579381cb3fc57f9ea92e1adacd0ef0349eee0bc2c9d3. 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/ES6341800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c504dec9bca6b30f97c364d2bb08af38a8d287328c4a24d7eb38658ec3621b5. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEVU51810922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4850962a3da86d3addda0c9d23195e7e9664557a1a8732b64ececd8171ec8c6. 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/DEVU51810923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dafe79031c4cc0c292176edbf2ecacfc0668855d22ffe91ec5f678ecb064c7c. 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/DEVU51810924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83e39bbc957065008c584a8e850dd140a0ab4b3d7be11ebdf49cc7252f8d076. 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/DEVU51810925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d1dc2f48ba0969c999a217832f8d7699ae9c256642269e4a32a1416ceee369. 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/DEVU51810926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7db4d58ebf0de983771b0be66a2cc1c2879e4dc766733022ae5833a0f7ec34. 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/DEVU51810928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6619614733fe38b31f79dd7db9f962f3218fc562f8eb3aa5fea8b88db1a86cd9. 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/DEVU51810929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2afdc30aa1a68e41d563bcaf35d5ddaf13598eb4cf6d9c31e7fb2003381426b. 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/DEVU51810932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb621753673fed1bf9194a162029d8581a82c5a0ae33cd94ec97cf940e3e9f9c3. 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/DEVU51810958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d878df7ae4dc1e37200704b03cf4378fca5679d7c3f36eb7b6abd1c131ed61. 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/QM6DC1548012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbd5d8e99c0746e7b77c110c81800e88b97882bfb84b934d0b83bbe1295be71. 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/QM6DC1548018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4586a999687eea87a8be956f139664172c007acb6b8ef7adfabb87a0a18ca1. 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/QM6DC1548022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199b8c655674594665e7a23f1cc87784d31a94cf850769145350e51cb2dccd65. 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/QM6DC1548023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c05d386e31eea525f9a638d84ea29c6a6ba43d0314955e1a464bc0cba54325d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM6DC1548024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029a9333a010114223e9dbddcfe60fcb0764152579894861d878138c6ab81bb7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES5106500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066540cb8db78d6f30fe97033e07eed3c093c766562e1f5074a1960b958e68bd. 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/ES5106500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab3b4ad744ae6d7833c227c1770cbf71ca27b7a563bd0c3b4f1a19fbe3984fb. 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/ES5106600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89152f3a2394ce5f4eb1a9063c95d90bc5059bfac03a97a6ea2fe45fb4bc07cd. 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/ES5106600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf611e3fa2bfebe4e3b73619b0cc5f7449befcefa29bf3c1e77317770e3978a66. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ES5106600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f82e71dfc5f0dd2b23e8cbc7138fb189cb07f0741815ea85287c8409b70fb87. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/ES5106600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b64a837a08c5babbfd719e0b8864fa315400443d9d6b4f60304804a6584474. 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/ES5106700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde54f2963217ad21ba76735d83b8d70f968b83e11f2d3afa834b2a71d809441e. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ES5106500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f2771b5decda475bfcd948d474bd494debfe1e01d4f346c74a8f3b4fd40773. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ES41A0800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc516556f7030fd3046db6f200ae6955d88682ba4bd55e541211492091908b75. 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/ES41A0800168.
Noche De Relampagos (Nit De Llampecs) "Nueva Version"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb833ee056aec5e81d30c5b905c45a7ee19164ff1dc0fb6ed10740ada3b58c0. 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/ES41A0800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c2e4880320c09357d7a12e1c5df96638df333726786b411ba49a3d9f9b5573. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES41A0800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c54060b5f67968e62fffc1d4bb9f656b8f839236e101d3f2e23248318f522c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES41A0800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df156539c74ce9dd569983f01900c1781437e70c2db3c53d32bb851826b5482. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ES41A0800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029a9333a010114223e9dbddcfe60fcb0764152579894861d878138c6ab81bb7. 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/ES5106500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249017b5fa29f1aa7babf52c1f1f59ebae9e69beb4a1075bda8053d2fd5b496c. 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/ES5106700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b64a837a08c5babbfd719e0b8864fa315400443d9d6b4f60304804a6584474. 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/ES5106700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8fea0f51d451f3fff993f23243c1f95e0d395e8d99fd606386e1b243d8294b. 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/ES5106500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d69a78de1ff3ee998ab98eec6500e7bb6b9e9be3a68775940bca93a177fbc7. 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/ES5106500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f4adf60d1f4a0fff90649af2dcebc95f7b389077b6112e818d33e2783ea28. 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/ES5021900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaca9e7e7605533cfab2da9e3fc14736f9d5988005a3301b8a83da6858abe1c. 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/ES5021900143.
Recuerdos de la Alhambra - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3880b5158f7518e6b827cd27070dafc25513ffaf0ba157325b64baf01e9287a9. 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/ES5021900144.
Fútbol en Acción (Banda Sonora Original de la Serie de Rtve)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1d2210464a723402af523713dfb8abf27dd5a799eadd2a7b6459285b49260d. 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/ES5100100342.