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 0x8088d5d8e12171a11a732820c92f0feabb5afeed88bd6378e6ff61b1b823637f. 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/aaeb1504-f61c-4aab-8e49-a866b99ffd95.json and https://artists.proofprofile.net/proofs/artist/aaeb1504-f61c-4aab-8e49-a866b99ffd95.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 0x3709ed63fe03810e0359884f1585e32c35e29c4a1e3bec99434dfeacda4a00ac. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:05:18Z), 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/QZPLS2032444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89db439522b7addde348cad482a6865f8cff7314281040e81b3f90ca543d8632. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:23:55Z), 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/QZPLS2032445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92682cb50e196aaf86f98c85965ceae435fdb883be5a1d0e500edbbde34d4d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZPLS2032447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7929d3577ff69108fec26d35798913725ef91cc1235b26655ead1d0bf4e904b2. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:26:42Z), 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/QZPLS2032449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b381d90b4e0825c8fc2705773867962879d112f97b7a13a9d7704cc63d4f69. 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/QZHN42194949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b79c973f812873d60dff548dae7129aac48f9527d79dda52f702c70743c98d. 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/QZHN42194950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824a5eac9c4af6d1cf7d94604ed70c75f1eea7538abd105800227eb1f38e908e. 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/QZHN42194952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc2af11f3f3d13ee611b1c62eedbcfc20ef43c87e1d65a28ec871f75fd4bd05. 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/QZHN42194954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8941c7974b94e69e50010fed171f96a0ca8e55a3cbbdda14ba5573233c6006. 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/QZK6G2191915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe204b0e2fd5fc0c9d1fad87022a3acf101195642e10efceff30a0d8aedec1ca6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6F2172923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efd27c8ebfaa345cb9b6285710915d9363460bbab85e2ea0eb3e58e845d6f32. 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/QZK6F2172925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f2eff241cf263ff86f165ffb8b4c740e811277f504bedf78d236c37c38b3cc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:33:55Z), 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/QZK6F2172928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1801342dd214110d5ea9f22c4303a3aeda2e0ecb6f4460938247d7105094535c. 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/QZNWW2117021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391be981be1eeca101d0fde3061bb1dd2d4046568854ea68400b9ed41e2ddcbd. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:27:06Z), 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/QZNWW2117022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e0c3baeaf7ebfaf714fc2fcc61ba60034753abe33fa4c8bf01fb6473500754. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWW2117023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a20973cd16a7ea08a0699de651672c2b3f5e1599f25c3ba7cb4a08b0abf03. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZNWW2117024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f240a28f2bd4da4179091a1ce011ecb3b7dcc5ee28d6ad956650b21db3573. 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/QZHN82206769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50854ee8634046ad9fd387c9285212a4fbcdbf3a5a9c67ad500b660147b34258. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZRP52391102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6540fd6af0257932242ab1eb9659576527c498abed2da0fccdb371b6f0caa098. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:34:11Z), 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/QZRP52391103.
Instrumentals, Vol. 1 (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee832dd53aa16ada8ec53ffbf3663567cc3e27d8890042b29be30f0e9741e2d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZSYP2434500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022bf7f5387d6879e41ef963a71ec662697a335a2e0c49ef40256290348be19a. 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/QZQAY2482542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e2b6518404b981338f12532ddd33d74a9249575bace27328b02e92999d62b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:25:46Z), 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/QZQAY2466439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095a8dd9a2ad0e65b042c07f296d67ecfe869a508abc506985bbe7c1918bf106. 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/QZQAY2443579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc93673f0eca7105cdf8b6ecec70fa7fd234f24328c4b5c66f5ba33ab0f350. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:10:56Z), 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/QZQAY2495859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40954d15c77f636d808583327ebcfa1bb1de7eae4351007ce677a0b24143aa5a. 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/QZQAY2406877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4308d99048ac2dacc716b4acc3633ac1ca7c425aa7a8e0c12d09b777f8457970. 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/QZTLA2534213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f25c43d1fe4de973dd22f0d330b772344be7655192136d4956067b1f4a20be. 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/QZTLA2531520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb167c36973d806a01c836560db5b97707333aa90f0aeed1f1a649f5dcebb709b. 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/QZTLA2586653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b6e5a2c0abf5198a95735995455e827013ab0147224999aa06f208471bfbdc. 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/QZTLA2523299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98992ec97c431ca32a5b9e0fd09c5970d9b8bf683100c8cd155beeda6df2afb6. 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/QZTLA2585327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce58ef9bd7e48fc88fb642c59cdabaaf370668da59422ee76cf31cb48ce3468. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:35:57Z), 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/QZTLA2551675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac8351f16b50f3f4b99580e6b23e07b45cc7220e13518d44dae8cd162f1b811. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:17:41Z), 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/QZTLA2566899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451af3809eb96342615a4d3adcb911663a8548a89a1d1871ee8b3a245ec9bb64. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZQAY2528594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea1e8156ffc271f53439ca6eaf5c6521ee3830bad78e5d68de0effe986d7957. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:35Z), 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/QZTLA2561336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b72437d389798945233c86935e189c021b6e050d498f2a8566319e0742cdce7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTLA2523940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a406146c2501425c889a9a0f8b28d38f93b19ae6c4e37d7904e6a180830c995. 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/QZTLA2585374.