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 0x678e39009ffb8b373c0357581d06459eb4de1f8e1af9ef777c84f40f97e57515. 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/db56d3c0-1f2b-4d09-bcc3-ead427e00807.json and https://artists.proofprofile.net/proofs/artist/db56d3c0-1f2b-4d09-bcc3-ead427e00807.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 0x0bde996826471d4f24c896d221be8f568c8b5c1bc15fa958b7786b5104c63fe1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFK2362896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5c99baf31fc5a16d2d9812c269522286f9ec50eab8e3a3c32e001ed2b4a69. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZWFK2377511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640afaeedf10c71605eae8e0cb86c0a0b2ad5d9e4efb9e5ceabf11bdf5c808c2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZWFL2343790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b696e3a01d48ac00686f3d7387ea58d5105c7341dba69a10820a48dfbff9993. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZWFL2343791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ce13c3bfe4d87a982c705cb6b41e59e4e857934b06da345e05e19a66eee6a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFL2343795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7813b9925316f5538f5b1d6f8d4fd8c9417b407df453ff4e94374d091b910aa2. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFL2343798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f206680e9312735b4fe48055739f46977bac013d5e069000ba06ba62a641c6e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZWFL2343800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d86ed8a098f6b6e00f65d897525e003d0a6e1ccb30bfd1b8c560e2a9d880e61. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFL2343801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bb8dc723a726af137d660df260edd06a3b77cd2a29c7a7fc799bb0e0d58b49. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZWFK2399523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff11b842e524bd774a7f553bfd0bd570b519c49185333e8bbfe82facc1a68a03. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZWFK2399524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cad51f20e305c3cf7b651beb178521f72386fe4323d852c6aedfda40a2a541. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZWFK2399525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e07442118ea50e36054d46783cd49b7bd9fc12efbdfe44e20d2ceb5c34fe27f. 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/QZWFK2399526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cc69bd3a2c5d69ee5bf597e351bd36cea71f17a267f53af9e5a5585fefbda2. 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/QZWFK2399527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9cce24a3589c5e309ae28535695ed76aab4909520d338349784fd4d53d6dd0. 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/QZWFK2399528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9b5c0c84c398d665079251c99800881b04b1cc3738f01a3a8f46f0fb0263f3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWFK2399531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822e0e3120f2e3df2ae13629b9dfebd349836104484e399ae2e1987e0778a02e. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZWFK2399533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ed5f9938127e8ecbdcb0e12413c1952bff6df9e3804fd4bdf9b90bb2cbdfdf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFK2399534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa8e31eb08fa6ecfc48651e2dbfc2aea82e97821dba1a39558c01ab7ae89378. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFK2399535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34f722b1c04eb4a42a6f8082ccde077e6e9ad3497f8ff8ff8bcb3130c97a4b0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFK2399537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d64ab5b751e70eeed3b337f6c459638b1af58c30d6d40e3ff499f6c9cf3e42f. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZWFK2399538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f20ba5f0f5b805f44c8096622016c342a29cc0bfb95437faa76d63856fb298. 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/QZWFK2399540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00368fcbe2ccd6ae86062290f39fa58288e66af31feadbf4cc3940d54db60412. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZWFK2399541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecce427c00765a93e19964376ceab656929762160671cf292025b7a9b7a42b8e. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZWFK2399542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af423396ceb39df49495dd531f2bd1b9313692d505be53daad1b4fb0d6a8939. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZWFK2399543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ff87c4df580edc911f851a616a388460353e5d96c9c8067bb328218c9bcb96. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZWFK2399544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b90bc4fcd345ccfde61105741b5a2ac07293030ef30a60574ade67eff49e61. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZWFK2399545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029d1e9205e991a0efcb9b31ea9ea77bb45433e2a1bfc56ad53a958b82548dfa. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZWFK2399546.
En La Disco Perreo con Trebol Clan Y Plan B
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd160b67896156c45b661ec8133cb38b0c505cf88d94a5105766450166023283c. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZWFM2396046.
Caracas en el 2000 (Afrohouse) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2048f7dca900c0513a9b4cb86101b721a719591c0cc4630e59d713075f25ae5a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZTAZ2432617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a76b9df793dfd6f5f0b51108ce8a3dbf14d8a5bebec7afde986861c1564f09. 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/QZDA42591451.