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 0x9186badb5e1ad5d0c7bc52b2970c7bc64519705c0e7c4bdc4a8218ccea7d9f1b. 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/72a18efe-e42c-4a65-993d-ce1215cf707f.json and https://artists.proofprofile.net/proofs/artist/72a18efe-e42c-4a65-993d-ce1215cf707f.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 0xff10f23f44fa10d52eb8f1ea5ed7f9431e8869f6acb478c69d47249751cc1279. 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/GBLFP2294136.
Rondo x Ridla x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce62385aac97e99411ebbffd5ac85ef9419aa437f018a37fa57953fd004d6446. 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/SE6QE2215690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2576422684821f0062a96dbbaa77c6cdc3470c6528db07dbc3db4a4c35bae03a. 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/GX3Q92358334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2546bbef5e7515c8519c8b6c309c9ab2e7d75dfdd2c241a0fca32ec81590a2. 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/US23A1554359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0709ebdd89ab3d033171c7bd2f816a9baf127c88627d0bc302e82789a34e1d6. 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/UKXN22358904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bbbdf657f075d5904204423b2141e88942fd015ccdb910c3aa65649099492f. 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/GX3Q92391691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc16c2878ffe59c0f9c8dfdbc1f2c5fa8af98cfa1c11574739865c7c64e3ebde. 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/GX3Q92347046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08857d67f8c64b12e94fcc7c18193b71e18a6524e1474b28ad2ccdf2f67a3fcc. 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/QZLBC2202140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12702557a17a7bdbb5e290a10af9d57e45ad583b2cc23f8baef065c8d4311477. 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/UKXN22296879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069a7a0c702eb402670a8d2eced2cc99a8595d5f17d778d1773bf386f9273c1d. 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/USZXT2250296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a4dd6af90e44e1692b0fdf9d95a1c9d60d341612020fecd14c51854289623f. 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/UKXN22240084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb551f921149bb61b740e265445d69371b5cca367cb891375614a4f60276e3cdf. 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/UKXN22235261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0bf789aa2acdf5b4d048cc1a002dbb38aed037e8f64cfa6f06f576e72a17cf. 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/GBLFP2269684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d95a8b4bf807547e3f944925adf84ed5c5f946ec2ba40ce66029cd2c855343. 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/GBLFP2257122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133f1f814676bd6787818e48bf2eb47630a66e1571445ac9a6e067ffd1ec0a1e. 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/SE5752188725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5b47d8bc3ba76419f57cbcdac45fe142727e544c69154ce1efe040d493c54f. 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/QZK6F2252113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17f3924ffab398423fc29e81139c6d6310ca3549d3d6b22ce2353cbd9b9a145. 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/AEA3A2216217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c78de915946e514711cce6cbffaa479145155f5233c6071560b004d1ea14f. 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/GBMA22424599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d39e0ee8a9482b31f6a99aefde359c2b07d50f0a77d51fb9b92f86195d29c2e. 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/TCAHD2381187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6dbe3f4a6f774f4874fed10b455fbc920e1cf662780322c5648b556378941d. 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/TCAHI2395192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293e8befa921577e6e60d7d76bc6ae014468c5cd10187198c311225122b4dc7c. 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/TCAGE2276513.