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 0xc19e394147a7d44fc1bef59ce530cb11e946b956909e919ee7f2b389711c352a. 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/6d51b63c-e4cf-4829-97e9-8cf601095998.json and https://artists.proofprofile.net/proofs/artist/6d51b63c-e4cf-4829-97e9-8cf601095998.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 0xb4eb9067d27d3a7797bd59e3c3bc35a5658cd1373e37e456f3b0512b17704357. 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/JPVI01441840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248b779aebf4144f4dd6953d90f7f4c1c7b76d4a556a098c1be7d682f9b99f01. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/JPVI01441850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7de6bca907d89ac03de182eb7030b1ce7b3f968e7a51b91861e2dd1853c3c4. 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/JPVI01441860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6668f179dd34c754d9a86e63bc39ac340eb1c45910e57d4c3d149d8a31a3b83d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:31:23Z), 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/JPVI01441880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ea1d86c6cccc2d7da94bb1b52fc533e606978db4c8b2ee62025e49e86e0cbf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPVI01441900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a37eac1f55b23736adfc72943acbfc76fe28fa4cca9a1976005411fa5b76609. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPY862300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4068f898698e50dff13f33590fe950c696a5832285c73a8fa5e6134141c5f8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:54:33Z), 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/JPZ922309231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca542f8025ae33986c4211e9da29bfce92b66b171589d24f3f8ab49f0eacbb2f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:56Z), 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/JPZ922310115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38163dabb707f55c71f90f7c6e71b9d8e4cd96622905a6d026ed7617eb0b641. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/JPZ922310117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf554d4ae753d12f20fdc2adfc37b047121f9b062b2ff6551fc8b62bc7473c14. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922310118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4068f898698e50dff13f33590fe950c696a5832285c73a8fa5e6134141c5f8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922309231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d5843c763440bec450eb688b4e07095fd7b3192d91bec570f4656c938bb001. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922310119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8f193163b43c7f94bb2b2754204d3563286220ccbd35a3b5e016e116d74ab2. 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/JPZ922310120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540617949043accf3231af223a7bfbfa881845407951e4061337933fdbe22a80. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPZ922401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6241bc5196d04c02e8bd1b48feac82557f3609e7482bb23964f575d9927dd34. 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/JPZ922401805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872848847b5c15492cd8b94357e4b0aed3ca09c2ef099da6438ba7aef94d5251. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:51Z), 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/JPZ922401807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca542f8025ae33986c4211e9da29bfce92b66b171589d24f3f8ab49f0eacbb2f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922310115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa183a50f9fd1a66058006ae8ff4736a129943dd364aad7a97bc1f7060680cd. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPZ922201218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646f51a6c05888d1eb6e8ba634cc958748adf5e9161940a70b2de03cfd11647. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922000668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fb3be5c203045a87ee69d629860b289c12b379780d6fb5dc19fcb348ed18eb. 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/JPZ922308387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15461d799ddb646a1c2c9f9e0d96b91abde632634476974b742760198094664. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPZ922310116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38163dabb707f55c71f90f7c6e71b9d8e4cd96622905a6d026ed7617eb0b641. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPZ922310117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc82e337403ff07f0ea2bdc013eaa840d9c3af1b981278432ef103cd41f72f1a. 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/JPZ922209342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf554d4ae753d12f20fdc2adfc37b047121f9b062b2ff6551fc8b62bc7473c14. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/JPZ922310118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4068f898698e50dff13f33590fe950c696a5832285c73a8fa5e6134141c5f8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPZ922309231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee94edba5489f66b8ceb72e82a42276d6e42608445a71538fb642cc7db8b67e9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPZ922010931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d5843c763440bec450eb688b4e07095fd7b3192d91bec570f4656c938bb001. 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/JPZ922310119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8f193163b43c7f94bb2b2754204d3563286220ccbd35a3b5e016e116d74ab2. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPZ922310120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c02ae2460ba74b13bb58f7b1e8455077d22645d24ca3f1a3aeef89d72745434. 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/TCJPI2598323.
Everyday I feel your heart (ORANCHA Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135ec0ec2e8e1ed4ac8454adff1a2ef79c6d955d5837e6b78ae54161ee6473c4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPZ921708931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea8b855cdade1eeffd29bebf311e2d6ec499e0f4cccd3e7de5bc767de53243. 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/TCJPL2034676.
SQUARE ENIX Chill Out Arrangement Tracks - AROUND 80's MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc398c45dd51db22f2901d7f81ec2520e3ea198ebc557c75a9d90ba950ed21f2e. 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/JPA842002548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f31331ec35aa37a247266eeda7a9d7e32b3fd6c680fc3805e445c76e94161f. 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/JPPO02203674.
Stay Home - Tommy Rework (origami Home Sessions) feat. mabanua, Shingo Suzuki & Shingo Sekiguchi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42b1c5cdfcf07fc6c944beb2ed74ebc61416d179b7934986ca4002b6088b81d. 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/JPZ922005599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3916da5615db58cfeeed5b8292cea73aaac03bccb718e1e0c597ebc04baa775a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPZ921708911.
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 0xb565883c008578dbd810fab5d7e2616314b819effd71dee2c12748a9ca4ab2b9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPU902104527.
TONKATSU-DJ AGETARO THE MOVIE ORIGINAL SOUNDTRACK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eb22e3dce2e9b1acd863485abfbdb2a959d113a2d6df8e8f4d46b5eeb037e4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPT592010335.