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 0xedd4ec16cfee4b880ec47f142ae4236bd0538b230e3b357594383aa4e2d81769. 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/0bd06435-627b-4be6-bb56-f519c05d4a0f.json and https://artists.proofprofile.net/proofs/artist/0bd06435-627b-4be6-bb56-f519c05d4a0f.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 0x9c0f42e79f45e776b0dd54bef6942a99baaad621ac68674d966311dd7a909ff0. 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/SE6I32162142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502fdf5a8f2fbe847412734bd5b35bf702c1d1ec50a8a908f4bd9fb121869eca. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:57Z), 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/QZTRX2353334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7988e8da5d9168a8aafd0cf3067980710106d3763caec69c1070c07e7e791b5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6I32102006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f42e79f45e776b0dd54bef6942a99baaad621ac68674d966311dd7a909ff0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:59:04Z), 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/SE6I32162142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba0c798cb0fa5f1bd9cb524cb666d3fffbd7cd17107be82a06fbc7f2ec73729. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:23:47Z), 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/QZTRX2353322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c462834830c1b5fce46534ab992500b2a1490b003b8ef9543337b28e622b648. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZTRX2353323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315d28ac9d81f68ea5462e6e4325282f69d0b82d478a51b2d59092c23f061ff6. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:33:55Z), 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/QZTRX2353329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc738515e9fc141159c767d90433d26d4cb4f91613ca5a2eea17af473685110. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM6N21465698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb4d3f0b072fe229b23297a28c4f9ec62a9605885b14d9573de9c799b11c011. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PYA041701413.
Oscar Pérez con la Alegre Fórmula Nueva - Rohaihuete Ningo Che
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6c28ddb047c55a172f76484ddfee8be94cc7e86f878b14e5d4e05039ff6330. 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/QM6N21436694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0606835702f78c672f628e81ee8d6aaf312b6369f7762fd75e5c91db2be3059b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:19Z), 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/QM6N21436695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17685f7b0dc3082bdfe788d1acaa37ccbd63f9f655bdb7f005c2b42dac2582a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMEQ2068143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343678067e64de95be16021d094d55ed106a13ede23ca49f392b07c6d8584148. 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/QZMEQ2068144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a6eb57182765600318fb4503231aa17faf393afbd49edda9462a641d931363. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZMEQ2068146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f64e6ac2d6d71a6c9bc414b6855ea91a16bdb15a0064481acc3cca22f833dcd. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNWT2073540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e7f4c5e1d6f15da8644c7569d6591bde1d77b231837a4857b90eaae0f76a23. 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/QZNWT2073544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8198e8a8dfcecbf578b61f41a20e69ba351d5715e2988cc2fc8836d4f6f2f01f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNWT2073552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12207f80279d75b3708b1be315430bf891ada9631aa9b67e958776f1a9f8faa9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZHNA2213125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92df2b5cced567663e6b5747016bfc0aa055c6c9cfe9159fdecaf20a3911b0a2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFYX2043513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662d222a27423b8c5136e5516cd03bb6413a90b4f8c7fd36bd43b5ffe45abd57. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYX2097531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cdbc22817323391df635cdc59787b4bae8194a0b1bc1b7c5b46276390869b9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYX2097539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6ee46ed0d9a296a36f722fd5e385eb990a01a7995401cda7a572082fc1a4c1. 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/QZFYX2097543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b79cf4ad669f4dea0ebed34dcc8a37f3675a48362e6bbaf73311e09c0d20f2d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:38Z), 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/PYC842508829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18592334b2d62ee0bb83bcc7cf669d8e2e1fd7e3ce93bc7f94e119a93b65967. 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/QZMER2097465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8f0f1d5f56d5f605f0af467ca0560c67ea0406df009737151fd6ce7bf424c2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMER2097466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fc1b760afb19d93906422db3ca646161192263b728f815ebcd10b60eb4261f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZMER2097467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd856649279215f2f553efa099ff48de8992e10cbdf50ffdaf13c092720ee7618. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZMER2097468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4250a04cd919ab2347448ecedb6d39e1bcef1e239e9651818cb04a65d1c025f6. 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/QZMER2097474.