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 0x9e15da70d12ad4e7d0be1e5052011bd5253a8ba983fef2ebd46d80777779747a. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57136427-6ee3-456e-b032-131c11a74861.json and https://artists.proofprofile.net/proofs/artist/57136427-6ee3-456e-b032-131c11a74861.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 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 0xbb3e5817acca6178b2c01d5f15d78fcb17112afbbee4ca5cdbe85bc5c401247e. 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/ES5702400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7fded3e7ba92a8a9855995a20a5825c4e897f77f38414c66291f67a09c3ad. 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/ES5702400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c3bde4f1abadc76b80072a4340274ebeabf62bcf43e7a971babdfa8d2911b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5702400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b0bc14b6c0af711a49a38d61108af5e735fd836b43d28a5a25551ec30d929f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5702300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b5740dc99b04da9c93b1c50822548daef73224ccdbbec93f35d8b3f61b55cd. 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/ES5702300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c6467192c07df9a3acd440af1d8bb225c6fe190f1c38d9de76b20647b21ae. 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/ES5702300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec44f8f9b513f375bf8724d9228bcbf270339ff9d4ae7d8f041376a6922f1c2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES5702300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c6467192c07df9a3acd440af1d8bb225c6fe190f1c38d9de76b20647b21ae. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ES5702300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b0bc14b6c0af711a49a38d61108af5e735fd836b43d28a5a25551ec30d929f. 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/ES5702300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c89527d2eb8b1c3b692347d1a50303457212040b78710a72692e8750c4b1153. 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/ES5702300504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f6a0ec4882a4e3694f180ac09ab16cd9259cfae2816447adc059168719153d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES5702300506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681789db97d2e77b76e511912c4c73ab0bb0fb0aa451ce6b6b8126c01c1316cd. 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/ES5702300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10520fdacfc3d77582c33f30d627bc1a729f716ea26449f34f18576c82b80b40. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5702300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb134701ed9b08ec55f8910b80cd3ada65f68ae0c60e42ebd406bed04d3907c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES5702300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e01b4ceb18ae566d03c1d0b597241727c7be9897045b676382de3e98f9fd67. 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/ES5702300513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096a53374496f23cec8bf2e08e5eb225705583d0e0fdd85565affb536998f469. 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/ES5702300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa584494c38767ea4451b2ca06c4645b384e691559d031f2a5d879b51fb68e27. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES5702300518.
Más canciones sobre ciudades, trabajos y autovías de circunvalación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3e5817acca6178b2c01d5f15d78fcb17112afbbee4ca5cdbe85bc5c401247e. 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/ES5702400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c3bde4f1abadc76b80072a4340274ebeabf62bcf43e7a971babdfa8d2911b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5702400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7fded3e7ba92a8a9855995a20a5825c4e897f77f38414c66291f67a09c3ad. 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/ES5702400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9b7621a1343c97adc4a97ea130523acc3cf7aae5f58669d4b00a689e6dc87b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ES5702400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9af8108e5fa8361e3dc7737bb6e800533f17dbd4510dc41817f41df90960c71. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES71G2405107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf488a20483c941fc6cba2c37d16bab3227f5e8e40fe4aae2926481bcdea95445. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES71G2330525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da4180021454137e7fb01abe618856bcf70f97741146eb38c9a14061d1c7ebc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES71G2409891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b160c59a58794938d88695f0bb9b931ff61c947d5dd7e402bd5161e5d192780. 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/ES71G2422499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da4180021454137e7fb01abe618856bcf70f97741146eb38c9a14061d1c7ebc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71G2409891.