1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7f714f08dd0aebc301bf0ff4ec860a9c611526ad5e57404b289940719f4398c9. 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/07a1254b-961b-4df9-acef-efcc67cdaa8d.json and https://artists.proofprofile.net/proofs/artist/07a1254b-961b-4df9-acef-efcc67cdaa8d.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 → block OTSBitcoinBlock must exist at that height 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 0xcea96fee02cf26b4f1f22427323bc9607bf3a6b8e1df3924b29d2cb5c1ccb4ea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES56D1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18d99d36d9ebbd7868f83e05bc75abbb54dbe7bfe2ecd06198361f1a50b7089. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ES56D1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ac90e2d9b31037a482b1e89a3b3af46cffa4ae2037f79076be0a6796c144ca. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES56D1700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f8d426211ada8def3bd52d685b25d0ca293345f9f3d425133483893170a37. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES5301253418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea4c8ae9793f4c83ce0d59db90f3cfd5518c644cdd95d67f9ff0b705279d7f7. 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/ES5301253421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb862c5382461387439c5ab0399c39beb3a4ce079e8632930d9d713ecb6bad559. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES5301253422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3af6e8eae9ddc559dff4fea472e3650b292c4724832aabe00a5820dbd04f53. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5301253424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76404ffce99664b47341264201eb04c36f657968fb1f4429912b22a266b113b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:05:33Z), 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/ES5301253426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc25685762b566b50f4e8d395dd74820d13c41c6742da750b734ced2e2213a1d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:37Z), 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/ES5301253429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7d0c874b23af16a10c9cc2d0d629bb9520b314eb77dda3d2c86c8294f77f97. 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/ES5301253433.
Hasta Los Más Cerdos Tienen Sentimientos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d69b1518b3e70097cff9cc8a8ee9d1d54c7027c9b5ff2a867bdfb030342b37e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:50Z), 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/ES56D1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424a58d6bb9859bf5eba0714ed59ab7232bd1edf4f2812a14c74087ad5c25370. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES56D1700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2966c4d5459eb1e4fe21b07803f704bef994d54c368235a0b6eca23ff1336588. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES56D1700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72771f2f8bfbce016ba7e7aae1f46d01ece3a8f1083431e4cf3b6c664968c2ba. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES56D1700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e74e2d3712bcfdcae27fc1b55b6077e9626add96362f100d8b92c5b01e52f6a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ESAAI0189543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31bad70b0f5af64dc4f07dc6d932f33602bb61e6a0e49131716999d2d19f5cc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ESAAI0189523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60512adc1b5838d11c3278c590aac9a045470d3e84223b6807a3ecfa86cb97a9. 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/ESAAI0189525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f3834b69c0c7800563e811ee3621e6135435bd81cf680e51db9db95e0a74b6. 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/ESAAI0189527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79814e9afc3bcb53940f3100de29bb4fc356ecada62dd10fad8f2c1d3c3fd74. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ESAAI0189533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e74e2d3712bcfdcae27fc1b55b6077e9626add96362f100d8b92c5b01e52f6a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:14Z), 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/ESAAI0189543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de031b9c1377cd3815d335a86577e6829add2a6c31e6bcefbf45ee46faa89ae. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ES8241425902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff1227c0b9cf59781899f24cb16daad4411baffbf26f5cfff3276ecc04a87a. 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/ES8241425903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7999179b33225b96b306368ca3c83be1c7d77090368a4282c52f6fa6a6b3afca. 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/ES8241425905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a2a1678872f7ce8b483c9a8c776b0a0edcecc041789bdc7a8c2de56e4dd2ad. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES8241425910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b8872907d5938f37e6e5d4399bbd5f1abbe6e01e96903b62659a228b2cf7a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES8241425912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe738f2b4a96d3655944c9e892e987cfc39a62b422023bdddcf370b7a9c92cd20. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ES8241425914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df88be12133da7cbbfa0ac62733ec26e1b2acd7acedbd5b1df4dfb299eab104. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES8241425917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f183081ed870a30c221a827e35103e3f0086af664b2a834f628a6a40de879c4. 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/ES8241425918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18505ed010cbeb4f16e237937a821cd77e75961e926ff0fedc395df365764dd4. 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/QM4TX2286352.