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 0x106096c28b06a8d3e3d9163d25d0072c795e1cdf9413aa40d3826ac57612139c. 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/6d4bd992-e916-497a-80cb-637f83aa1a03.json and https://artists.proofprofile.net/proofs/artist/6d4bd992-e916-497a-80cb-637f83aa1a03.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 0x961b2ac6a5900fc61a86a8ca79eaf10b0907031e704316cd350c7009b27cf79d. 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/GBKQU2071676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8584928cdb2ee7ec82d167a81f28b077bc7cfa0668d8c8e2673ec25eda350dea. 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/US83Z2459702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b1027ed1dfbf79c2c7c2a2c9c4a668ea0b0b2dfbf828b30795eb92cb34f6c9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US83Z2459703.
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 0xdb9e56fb5ff4634a071998df667d9073389daa89b7be8714d79954f601b2514f. 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/USUYG1490994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0ee73645a143f844d5d0f007817f7816bb617f02c5106b99939d1998792dc4. 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/GBK6Y2251251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b151c439864b1b8ebea6ad801d603bd01513f0da572735715d7ca4557eca4a. 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/CA5KR0007786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb18a9f1708bec662272fa3fc4c814afec34803e74e0d6fd50979a531cd8a8b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMZQ41632003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da3b8739621b405384bf9a92323ff7934cedd34cc1be1eae4d2835c14c1682e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMZQ41632004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f688a60bf9c13c84c3702ef30fe1dd1fd76a15b6fb082af0f14775038f2340. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMZQ41632002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e6261f382d99d2d8b516a365c904029c73851a5bd87f629a747a5487b0e16d. 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/GBJAJ2001115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f42d3f54f5787e927ae63ffcfc24b3782bde3bbbfbd3f743963e20d584e9864. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBJAJ2001116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5973ec183308f36a181530dad35ba9620d127de1a8b94d6c23d59367930ec1c. 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/GBJAJ1902157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284502a8f1b308e3e4df64775d5c261c04353a4a783320122db6f9864b6e045a. 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/GBJAJ1902158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf47570680584d21d595fcc35a036eb180946310d179e749d658c5d5aa73bd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ1900677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2bb38a2a044b10c9d8a4c3a1683251a3098abd8fac7eef23e04b1cab2c39e5. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBJAJ1900678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe592f3ae4c08b3a8968738d88cee5a9fae4b0edc7473acbec6c50e3579968ab7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBK6Y1951601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848babc8f00ca714c7ad4f1ad8f98687615d0733959aee768f71f4f082958f6a. 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/GBJAJ1800555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812bf06d19998f2e9505974d69706647a5030244ae76cc9afd8586fee7fd2c12. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBJAJ1800556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abfa354156f7181a9fa1e7a4830079e4c91ae837faff61e3d4ced2dcf0de36f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBJAJ1800553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c6a0fcf7f24c587c4108303504c2c0eb42ddfb3a380a551559985c251867d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB7NR1718101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3f4f3fa909310cf4b312ca8d3b9ca22a65079cc969d61fc0bbfe58df5d7328. 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/GB7NR1718103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cc57c408aef6b197eb5fbde5fc77c3fc3953d44feb1eb60dc4627742af3125. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GB7NR1718102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53020789a0be21e4bf147e354fde2f83f4316af8e4848b4217dd4d87350abc8d. 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/QM4TX2500506.
Worldwide (Kevin Knapp’s Across the World Remix)
Worldwide - Kevin Knapp’s Across the World Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b888e9fd3b6f557234b2287b89158995fcc24284dd147e1bf6fc51ecfbb9fc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2426616.
Mixmag presents Jamie Jones: Forever Is Composed Of Nows (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422852f377a60835127781105b64d9b8b7b31fc9805b499d0325299dd03fb777. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMDA62109269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d38b99f8495df2b04ae217b082e76f54598e4156dcea3ddbbf04d310a3ca62c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DESR41400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe22a9f987f1d3e6678bcb0de6ee292e38bf957d193020aa37d2e9149c82b1a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DESH42000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7398f34175fba62946ae7fa8863f118cd5468f8617feee0fb886a6020b20f3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DESR41400049.