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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad233463bd63004ce7459af6ba5cb21270975a7e9c108437823d12c59ab4570c. 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/6b323772-66db-4911-9729-36bc79e792a0.json and https://artists.proofprofile.net/proofs/artist/6b323772-66db-4911-9729-36bc79e792a0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6c5b2a4be3288bf03c541eafffe33628412dbfcbf857198af856ff573109b5. 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/PTRZ11100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3af428d5a54ef2d23a1b2f0b195701e332d9a822e24b44a7ea34e2643fc043. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTRZ11100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17b8190e718a016f217ceb0375e975f6d48b7d5efee2a2924a1c5ad67a7e5f0. 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/PTRZ11100008.
A Pele Que Há Em Mim [Quando o dia Entardeceu] (feat. JP Simões)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91406d498dcdc5479c4498f2857078d083a36f3c9751bb3e29906ec664c9ad48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PTRZ11100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a08969d17e64a1f20f48c61e79f8d243137466ade0c36bc5bf5fb6fd2ab92dd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:37Z), 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/PTRZ11100003.
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 0x663afae351e9843d67652133abc4284f70ff3a4edfef20a93e85b1a95d9d0c41. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:46:51Z), 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/PTRZ11100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf789cba97891760fb80dc83cb877d71c9e4dd7808a6cf9d055b94f9992f9b5bf. 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/PTRZ11100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c93c9b703836bdaf2668c3bd71f78fea06d53a05a98d0362c4833dd8c34ad9. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/PTRZ11100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e93073a132e351f149de39630e1275d82ce75d8ab87b6d19466116c1a23d0e. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/PTRZ11100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f823f81a227b72bdd0d8e9db9bab670c1b9baced7acfa30108951e8247794a. 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/PTRZ11100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1addcde1e8c718a01c867beb753873b4f2dd3ee0ed0b4fab27dd84c1fc44aefe. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/PTRZ11100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345eb6d932fb396bb87388c307b000e670dc3a3a410778c920cd4e97dfc30d40. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/PTRZ11100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02f3e342f03afa9aeb25ff4f8fb06fb750f0e174bc81c6be6ce25ce150057b1. 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/PTRZ11100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe39d9877ee3e17f902d8c3189bbd5ec61c11f742d94e1a72c62cd367be8710. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PT6GJ1700012.
This Is Not America (with Márcia) - Bowie 70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec56be5f229a369230cecd893e40e9ec9f782949670b971169f27ad7d31d229a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTBM11600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c4e51632e1715eac58e242f23b2fcc8b343db77fa2790bd7efe765d7a83b0c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PTBM21300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3869ffb73869c45e896b9c7883ca22f81f6bf16536a1288f720a4427ac149c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PTBM21300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eedecb84928bda0bf9b879b96e040a5290a29c96639ef67a20a2581cbbd32a. 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/PTNS11200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8891e019dbe69eba3828cbc777febd245f92ecb642dec15a4892aa2c56346caf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTBM11800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2173cc6626e23c3cd48e29eff5944ea65571dae8a51e6a3ae1a10838a93e9c. 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/PTBM11700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39828c8acec849b01bfd4cba165b45cdd6ccb53ab8b10c9c83bf691301897dfe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PTRZ11800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cef935af3565fe01902955f8367c9adbd15f3cf37fbc290a68d8989c91600a. 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/PTRZ11800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec1f14d872b3dfd1b2f6e849676f1757f1e7253a76e7da378ca00bc04ac548f. 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/PTRZ11800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c4d21e98d2281982eb20c297019bbe3ac086f887c01ad7ad905bebd196c1c. 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/PTRZ11800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21c9b5ff9c702782c4c4c10d5bc2acc193514cebb17971871c64603ed600b7a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTRZ11800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255a6fdcddbaa8992ee1a07cb688c9c751cb70262e5c964172e64f49d5c3b977. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTRZ11800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7016a99c8719e7904cbbe021fad978a8f75f610e0eade9ce3852b3fe525ffdc3. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/PTRZ11800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aa20ec02401d8148ced92ffa9791834e4cfc019e272df7ae323221233dfab3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/PT6GJ1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d114cc5167cbd28155c6c7aa9589b022468bbf15e0bdf46fa4baa4fa6968ca9. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/PT9GO1700007.