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 0xf027c4f63ca4b1c65ab9ff84988b14e71cf7516e56f47cfa24410e06b8d79a34. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3f5bea9-0519-4d43-a432-e3ceb0c84cd2.json and https://artists.proofprofile.net/proofs/artist/e3f5bea9-0519-4d43-a432-e3ceb0c84cd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LTJ Bukem's Best of goodlooking Playlist
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 0x87add23f8e915dffd3585a709940361cd1ca3eb57879d4adb6f251dd6ca16820. 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/GBCCH9600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f15b472d393d5611357c04ed874da32c49c00472ae0b788a40560053292c37. 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/GBCCH0100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5158fa5a312da0edfc9d5a82cc53ed8986e1b0920c3c19ae4ac086bf9f91a9. 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/GBCCH0100085.
Free La Funk (PFM Remix) / Universal Horn (J. Majik Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dda4b43b79481e4325dfda783867569a3c5e0a4dc4ad5fed8db88f09ca60cf8. 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/GBAGN9500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130869b68e292c616e634ae355d206941e63f2e24bda897099785106bd70c8b1. 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/GBAGN9800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf0772319171d3c30215bfea35fecade5e104f80c942e9451c947072550ee4c. 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/GBAGN9700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dda4b43b79481e4325dfda783867569a3c5e0a4dc4ad5fed8db88f09ca60cf8. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/GBAGN9500056.
Atmospheric DNB (Good Looking times) Pt2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3906f9893cc6069a52ab55cbc9358287ff4207f37a0011a0248347d2aac60bb. 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/UAIV12300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b0764fa2e3e38037244709a1bd7192d95ecc5e106f27c36aa5a650b373170c. 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/GBAGN9810082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff162808b934d1d42d44c84a58b209067dea8028969195aaea76fab0e7787bb. 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/GBCCH0000362.
Liquid Drum & Bass 4 Autism presents: USA vs UK: A Friendly Exhibition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7b957594f9cdc17a73dcdde95d07757c0706d20a0a8a62864233cf09da1f3a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:02:20Z), 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/GBLV62200257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69ab1838536f5e2f2103f8c077864fb63a2e06554c1c51ac60bccef01ff23c6. 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/GBCCH0100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5ac1ad83f4f912d0f6838714f759c44f8a190af074c62547d491a58feae461. 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/GBAGN9600132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e1a5e5ed9d87569c6bbda09c1a1a10b0a39f78788acf93e44a312d152aa303. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBAHS1100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa799145803185daf7175e61e694a6262ea4fd6f7321117282e29eda6a9f87fc0. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBCCH0200011.
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 0x8901c2904ed456296d83979d7a0ada3b308e5760117f86977a44103d4d07a0a0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAGN9600128.