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 0x9ac869a9646b237de57b5e252c6e2271fe411afbbf84d69b32d656ee232bbb42. 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/056087f1-1c34-4af5-96c7-f51d542a3b7a.json and https://artists.proofprofile.net/proofs/artist/056087f1-1c34-4af5-96c7-f51d542a3b7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El hambre, el enfado y la respuesta (El difícil segundo disco de Egon Soda)
El Hambre, El Enfado y la Respuesta (El Difícil Segundo Disco de Egon Soda)
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 0xd6cd36f602f22665a5882df66194bd1b40d8a13390621115f5104bc213f7c31c. 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/ES5151700511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1fa6d34c66a495e6c9534b4d2bc959e2f98d21a33ef57b02a542ddbd7f677d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES5151700512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5644336b2176fe13ce39c6529302b6b6f1ec260d6d0d16e4e8be22438841af36. 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/ES5151700513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184c896f3b1c3139872b6ca29d2b480b428d1a35c6763694c9d638c9f48ce8e2. 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/ES5151700514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aadc31adb92fcc41940361ee6dcd57fbd3f266a42b62c8838557ba3087b3ed3. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/ES5151700520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc02d805b0dd9691026a824b892eb918c0d8fb0b56ba0e863c5d122ef899b3ef. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ES5151700523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6e15cc1a8dadcb9a4f1c10b3b4749247d362b93e29fbf99d32c52905c631d8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ES5151700524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fecaf07c02160a634d9f18cb09856385d6dc6b8447e2b92517d5a784872dbd. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ES5151700525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc6bfb94c7cb90c3437887c9b7db3b0b6639ab9ecad0281101bbbe164941e6. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/ES5151700526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f1aec7e14a62cfc50dc095bb9b6a64b76fa9708f28dfa4e9c49c92bfab0fd3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ES71G1819898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963c76985a0c179a32e76b8bdb8999400107c63430873332fc03cd174b824138. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G1819901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa501f656cd823f18cfee87f202c47e3b15a61cd92f0c2a1e672b5218db87d8ec. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ES71G1819905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f70275503229797c8095e7c292edfcbb5746fde6b055b416d4cb6d9d59cc34. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/ES71G2202164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90cbc4102be83c8cf00af0fb7ed17a4454289529bab2f2268a87fdb81a70d9b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G2154017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fb7c119162becf0da44ebc2d0c4760dff276f2759706e4055e7758d1554374. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ES71G2202166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1014b7896574a073183951f7050b76a9f413ea5f78df3b74822f6361754ce9e. 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/ES71G2202168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32e3226c47ee1b6fa49f15351bc7d37926d7a4f7651857a817588dcd7cac28. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G2505222.
Més Raons de Pes el Tribut a Umpah-pah (pah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd75eb187e1081beae1ea7cbd513951ff684dc2127c2150bd1b76f03222509a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ES5950903238.