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 0x83b0c45c9bd426056d2d576b1dbf50fd89481fd2d9a4dd89556533f706a0cb64. 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/0f159ac6-5c39-45e3-8639-b2ea7fdc9066.json and https://artists.proofprofile.net/proofs/artist/0f159ac6-5c39-45e3-8639-b2ea7fdc9066.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 0x36ae27a3bd79ec198f63c007f2b9334b19bd4016e6508222f304d80cd155c6ec. 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/QMDA62325307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf200cfee4d364163f2c6e4a278bed9386fa40d4580582889d2db65c6fcec8722. 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/QMDA62325309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc3f687519f90bf39829fa22c95f74801f7267c0a352756a75dfd57f864dc56. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QMDA62325313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d4d84576112745a21279b1fd02a76f50284596406e80e1513aa96fdab4137b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USHM21396928.
Wibal y Alex y Sus Amigos La Trayectoria Vol 2
Wibal y Alex La Trayectoria Season Vol 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3203056f4ce79b6b961b779697678eeec38de2eaf385cec6eac48c837c7b1371. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM7282073388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e5366796e1bf2c542d1324fd728c455cc534a8458e49f05628047bac57d897. 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/QM7282073372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524cc44df30005dcb2f0c02ea079fb6868c6d25d5d9f9ac3d93e32b2e7e81742. 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/QM7282073373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20437d33ff20ff4f1104550e2022874edfe4a591db64cdc90e0e2c02bf6b83b2. 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/QZZ662405170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6395d8727da6d897f75c72d358b622081310e46746f8eac5019248e051269. 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/QZ4JJ1650515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9b598c48d02ca22d4119f2afcdccc06551c1d3c8779ef1e7fc4a3ccc051e3e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USV351342940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4e00cfc90106cae5bd36c5f814385c758a879d50a884bac3aac5ee7273c819. 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/USJE61300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967aab8e9702443954f95942f70982c0b13fe8e2fe283e1b88fa1f077f4f5b58. 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/QM6P41989516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f61914367527331d1bb006f26b6936179a9c160baca317b15b4e0d2a67bde. 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/QMBZ91736825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f3c30c2d64cf6c9d692ca71453272df5e194ae8b7afc4499dfad039e5e3442. 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/QZ4JJ1650517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bb1afa7cd7d8c209d2c1927b9f0c17ca01166d1edd77633321e45b9bf01019. 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/QZ4JJ1650521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e93a38c994dfd8dcdf9b896861dfce75054901eca9141c3b8214a2613d0e00. 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/QZ4JJ1650522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb339b9a53110ea39fa7aa0fe50f76d002b93d9e04f767b98ba3c6bd723b32. 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/TCAGH2251456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9435e3b3d58d3cec922fc3951a5bbc052ec5a321bb1cb7a078c78790f14cf3c. 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/QM4TW2095026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb59dc1e74c6dc3a2d623d21fc845ce46013bc74093d624d7a7116897a432051. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USZZR0910419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8f669be41e9bfcd2e33d29cb4425add1910a44590bc02a62d31a2427f4194b. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TCACE1595636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9256511705baaaa754838dcfdd54d22d34918bbac7b23b97749d8e9f27413f5. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM7282453329.