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 0xa208a69ec4d39b66e31023485f9ee4fa65f403d6bcbee2e40e73da1cbcc1c054. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07ecac0a-a203-49b7-a5d2-b661b2a6df8c.json and https://artists.proofprofile.net/proofs/artist/07ecac0a-a203-49b7-a5d2-b661b2a6df8c.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 0xcad755eaf42cf77e6b8c5c06aec51a7c7275e1bb2628e04f9432af8c9b546a09. 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/USUM72305015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741f779c839a8fa80354810a63a910b80a99fa0da4f72fadad0b7da2a2b8c195. 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/USUM72201373.
Westcol (feat. Clandes & FineSound Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec4f47108d4bf7198a24132fd5fde0e7dfee15356e387ecbc109d325f28c24. 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/BK4DA2320693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99412f49164a4183fbaf30dce9cb87cafcb28e2b3b6951596f04f6928869113. 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/UYB282310601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa562d255ebcd73d89ffa9c331ff2ddae678643ff0db15897db4c573953a8e2c0. 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/USUM72316856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47eefaaac0cbd623966108876dd130497b70d63082cca2c91899edbdb01ffdfa. 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/GBLFP2368297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4edd7dea6618559d3ee567a402e3c78447e77c68286318ebc5840110296808e. 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/FRX872337563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34084e07daa1418febda8521603c59c3477bf5faf669c80ad8902b9cdccc936d. 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/QZGLS2377240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f5b35b3186ea79dab8cc87a47c25b31615c4756a7994318617ec3d2fc1d345. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P2258097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ff3e187aaa5e0abc6254269131eb312f2b0c416ec18651ae4ed2b4ae07cb0. 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/USUM72213663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520758332899f173871bd836247779950d3381303b8220f9f8a51e1cc90125c8. 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/USLD91738915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97209ede60645cc1ced0079cce82bbf390a52f99962d82db42640ee2e93c7d07. 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/USUM72211043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24d4ecd30f5beca24eddc7f979d59ee280480cf13608fd74d72093085f8628. 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/BRUM72200537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9666e72f348010d1741ccc241597d609a25eb53d0bff6efe9cd66357a41f4a. 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/QZ5BF1600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34a5b838e2b05abf108344073b65e40d82f51d72379f28f655ea89b57a04f1e. 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/QZDYA1800085.
La Nueva (feat. Blessd, Nath & Natan & Shander)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c1cd2f732726e9097aa9f86bfb537a7ac734236ded30c33f6f4365357e83a. 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/MXF152200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd01a8310b9b3b45658add0e0c85d2d24c89387908c12f19d92a0e5d1c06f59. 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/QZ7R42250323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a00e26d453d1109c0fe611cb00d10d027601f49b9593709dd07d9833e03314f. 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/COSO12100306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e8375e895823e6f10ad7dfdad471fb58b02ac3d01960861a7dd650b68c512. 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/QZ89W2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8a4e6c1ec471ef4cdd640175cb9e088234bee81309a6bf2e751176e4f76943. 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/USA2P2441016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ba113bcce3889223e79503d9344acc08a1fb2218f1533e060c408fce0ea6a5. 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/USLD91760235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33c647ec27a9c8d1553540091aa1c95bf97c8699a2e52a0b95ea241a37d4bcd. 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/BK4DA2413721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd543477ea77ca6739eddd04ab6d5c01368505d19d3214c72a6163bd11ca31500. 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/COSO12400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4374a6df697ed38c6a6ad064f7b8a6419b1f1b2ed8079e47ed71befb5f498ed6. 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/MXF152400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f10ad993d0a6145a90aaf50a2a783a001ef0e676345a7838e15afb1193f3591. 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/USUM72402338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19114be1d023c76a45867b02aa914deb8f02195f41f7eac835360fe939b08db. 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/USUM72012685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778a36cee0b2fc3ec932f12d184e59e77d05bf78a28f157294723f5594c5f569. 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/DGA052270615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb0c21ef7a58eb4d93675fc9d5820d8b9995e40de8f2a02dc3dddd90c482c88. 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/QM9WM2100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb97222982f6c9673389f3e1d90c28040c2cd8932d3fd1adca653adb6205d810. 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/QZ5BF1600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644597ddef6930b5890c4a433e67d5f938d4a2292df160ce354593418840efbe. 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/QMFMF2394698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a12097291bbb31f59c649c36353f1eeec8666e54c39a220ae18421988c2488a. 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/USWL12000501.