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 0x85b2717e6d6535a6db2389b6f97fa0ccffded035645ee318b7cd8a507d3cd693. 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/05470c43-26a7-4056-9251-d29e53ca9a8a.json and https://artists.proofprofile.net/proofs/artist/05470c43-26a7-4056-9251-d29e53ca9a8a.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 0x1b4c6c1aab5538c04c2ca1779b7bec9f1c625c2a61e5132dcded28a71f3253f9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:52:37Z), 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/QZES92148598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccdb7012b523277534f5d468a060249e0ad4fe6841be418c744da2cea0d87f7. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USLZJ2214048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d2e300af5796d83fb7b895c4ea1a3457591e6efad677bf29abd9a37bb8242e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZTV32265674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa1a4729c6192d1903d956b6da765cfaae12572984283c2f11b540c02892116. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWDD2268585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3d9b1881759291b4d41801e346e28d7c3f1e745a52d96fed8e6f0f08264786. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZ5FN2359476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e782fdb0b6d14963684a5fc6e31f37eb881019514670a7ffa0301b5fde1bce9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USLZJ2359051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb6d2582ad157ebaae9f5d51449854b3036f4c9fc132a057add3a782e29cdda. 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/GBRKQ2341645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1e441d5ac8af85fd358b08eb7b481db7a5b18743b348d89b46410b57f013ba. 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/QZTRX2315307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa042272a96536d6f96f36f202056dd57ff0f85e3640a543580bdb784a13fe67f. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZWV32343352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ace818fb36206a597cc924030711ddf13de6c58dc43873384d90059f2bd6624. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:23Z), 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/QZWV32343356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd1dc1c0769c5b566c47df157b6a5c94678d26be4fdb0c700689fbfd4bdc553. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZWV32343359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8446bde8685d3f465da4d95a17c6c5155ff98e1bf2e0817613bb6a355119981b. 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/QZWV32343369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e782fdb0b6d14963684a5fc6e31f37eb881019514670a7ffa0301b5fde1bce9. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/USLZJ2359051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b0df06f9be560fcae8c0fda6b513629573486398139ce93ce185b3498d046c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZWV32343387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5580f66c10fd73a85d222c464ee91d666ea05f06ab9b50be28e0d1fd14a840dd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWDE2426840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714ea1c21e4c3fd42a882736399e268e0e27f92f99f22284a7572c305d20b0a0. 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/QZWV32432362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f33604535a687492461012ebf30bac9bc6548c41feabe4ff21d03b6a2ebdc5. 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/QZWV32442203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764f2aacec9ee90fbddf876dde3b340335396b345d8f2504a826e56ebce3f05. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWV32454897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21207662c6d768a5b7d88fc0fb709d2ebe455bbd5a2d06fdcdc933ec5f9b245e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:24:12Z), 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/QZWV32473137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5580f66c10fd73a85d222c464ee91d666ea05f06ab9b50be28e0d1fd14a840dd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:08:10Z), 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/QZWDE2426840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714ea1c21e4c3fd42a882736399e268e0e27f92f99f22284a7572c305d20b0a0. 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/QZWV32432362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f33604535a687492461012ebf30bac9bc6548c41feabe4ff21d03b6a2ebdc5. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/QZWV32442203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764f2aacec9ee90fbddf876dde3b340335396b345d8f2504a826e56ebce3f05. 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/QZWV32454897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b024c9fc172f87c2c5ba3916b3e82e4947878b2ac88f6e5d2c744a4ff6683a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZWV32465185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4630f068f7fa139008568541eeaac1e2e77b73c2fa16201e7749b81da4d77bc. 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/QZHCR2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8121ef0785e7fbb13a7dcb8827607bc30dc3e514a06103160bc9a1e13e753eef. 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/QZMHP2054390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66a5405c23967b3a3178fb5a74ad3e289661999c354b0ed0540fb68f02fed80. 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/USDM32353402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511c0f78c9e737b0f47872d32af697451526aaa41dc72c10aff03f8691a19484. 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/QZ5FN2095971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05924db359f544a08f3737fd3f11ba53db01a75663e511c06953c2312f7175e. 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/CA5KR2452283.
Tekno Music - BLVNKSPVCE & SQISHI & HAMRO Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9c4013296aeb656161359ceea6deea4acf90ef381f67a24bce8aae308f84d2. 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/CA5KR2452276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1372fbb745ed5938c272959f6bb1e80f603214a8a68132d53b1ad9cee4ecaa0. 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/CA5KR2452280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2d7410e7e96842b5f0fe46eff8e8ea2cfefba8252b09ed5088770d3956cd35. 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/CA5KR2452281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05924db359f544a08f3737fd3f11ba53db01a75663e511c06953c2312f7175e. 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/CA5KR2452283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4204c44d99b99603310d16f1269c3838121b22c3343574b508bea500be33b705. 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/QZQAY2398842.
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 0x44a46c677d1aeb4e6029d1728b628676c3178efefcba754fc8bf6cbe3b7f40fc. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZQAY2323652.