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 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 0xb1145684d4587fcb52e2e9a1479e42ab584b8795ddba96e8128f68e5aac46fd5. 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/e298a7b2-4265-4da3-887c-74afb08eb60a.json and https://artists.proofprofile.net/proofs/artist/e298a7b2-4265-4da3-887c-74afb08eb60a.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 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 0x4c177cf5d8a84d78c06528cd352cadbead9ecb8e70331f4d1ed3a3c313d5a03f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBPPW0610061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed0f2052a1c92137e4c0c2db03e4ffafc1f8d2485ef217cf0f47d51fa2d949. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/GBPPW0610062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d552f85eea8946a22ec3b754d94a85e9eea9819861ffa2f2566f2c5131de2c1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBPPW0610063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657e67e57066666b69c1eefbadb051ab90f66ca85b66f6433ed6a47062a661a4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBPPW0610574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3f5333a190a8be772eeaf48d7c085b09cd65e7df6c930cc3dc727fed26d0a8. 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/GBPPW0610575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c408a8da4e8dcd5b8209571612b72d340559807dd55882e5dacd2d710ea0c11. 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/GBPPW0610576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59be5ae4f38ac09caac45e4e732808df228079d59a645f617a61c01382e3d2e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBPPW0610577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd342f34d4a0e1ed60a0fd2a5d07873bc6a6f4d1517043a58b91c64c1a40b8370. 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/GBPPW0610503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce61b9b1d3f07fe8010a5f20c4a8d956b7d7536bdd961b38aac32cd0a87987. 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/GBPPW0610504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6a58270373e21de78c105374dd03a7cf9d87d6281be52fa5454c7bf0a73118. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/GBPPW0610505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ef226fe702d4a4efc33474fcfabe46ea6e0e9e05e569ee33d27fe4b9a57dc8. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBPPW0610506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa439dc93ea6dad38e0a0a9e8417e1d64c43e252cc1ff7f2d0fe616f448b75564. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/GBPPW0610508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc43ae0c0ca145941631413786cad7df85099ec300ff303c47ce6a44207ec38. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GBPPW0610509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4ed47933b51275bba36dba656b075f1d02e0fc920faff98e2ee7a7605dfa17. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GBPPW0610510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa39aa3246b55e92fe9353ef6ad8364f6d64ef04f6bef1c68e2b95abc24d200. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBPPW0610511.
The Best Ever Children's Songs and Stories, Vol. 3: Party Fun - Deluxe Edition
The Best Ever Children's Songs and Stories, Vol. 2: Nursery Rhymes
The Best Ever Children's Songs and Stories, Vol. 5: Storytime - Deluxe Edition
The Best Ever Children's Songs and Stories, Vol. 1: Activity Songs - Deluxe Edition
The Best Ever Children's Songs and Stories, Vol. 4: Lullabies
The Best Ever Children's Songs and Stories, Vol. 5: Storytime
The Best Ever Children's Songs and Stories, Vol. 6: Travel Songs
The Best Ever Children's Songs and Stories, Vol. 6: Travel Songs - Deluxe Edition
The Best Ever Children's Songs and Stories, Vol. 4: Lullabies - Deluxe Edition
The Best Ever Children's Songs and Stories, Vol. 1: Activity Songs
The Best Ever Children's Songs and Stories, Vol. 3: Party Fun
The Best Ever Children's Songs and Stories, Vol. 2: Nursery Rhymes - Deluxe Edition
The Greatest Ever Celtic Music, Vol.1: Celtic Sunset
The Greatest Ever Celtic Music, Vol.1: Celtic Sunset - Deluxe Edition
The World's Greatest Nature Recordings, Stormchaser, Vol. 1 (Deluxe Edition)
Mind, Body & Soul, Vol. 3: Zen Relaxation
Mind, Body & Soul, Vol. 3: Zen Relaxation (Deluxe Edition)
Music 4 Me – Personalised Songs & Stories for Edward
Music 4 Me – Personalised Songs & Stories for Zoe
Music 4 Me – Personalised Songs & Stories for Oscar
Music 4 Me – Personalised Songs & Stories for Freddie
Music 4 Me – Personalised Songs & Stories for Henry
Music 4 Me – Personalised Songs & Stories for Nicola
Music 4 Me – Personalised Songs & Stories for Harry
Music 4 Me – Personalised Songs & Stories for Isaac
Music 4 Me – Personalised Songs & Stories for Evie
Music 4 Me – Personalised Songs & Stories for Ava
Music 4 Me – Personalised Songs & Stories for Lauren
Music 4 Me – Personalised Songs & Stories for Matthew
Music 4 Me – Personalised Songs & Stories for Robyn
Music 4 Me – Personalised Songs & Stories for Amber
Music 4 Me – Personalised Songs & Stories for Amelie
Music 4 Me – Personalised Songs & Stories for Owen
Music 4 Me – Personalised Songs & Stories for Anna
Music 4 Me – Personalised Songs & Stories for Connor
Music 4 Me – Personalised Songs & Stories for Tyler
Music 4 Me – Personalised Songs & Stories for Jack
Music 4 Me – Personalised Songs & Stories for Leo
Music 4 Me – Personalised Songs & Stories for Isla
Music 4 Me – Personalised Songs & Stories for Scarlett
Music 4 Me – Personalised Songs & Stories for Joseph
Music 4 Me – Personalised Songs & Stories for Katie
Music 4 Me – Personalised Songs & Stories for Megan
Music 4 Me – Personalised Songs & Stories for Thomas
Music 4 Me – Personalised Songs & Stories for Jake
Music 4 Me – Personalised Songs & Stories for Isabella
Music 4 Me – Personalised Songs & Stories for Mia
Music 4 Me – Personalised Songs & Stories for Ryan
Music 4 Me – Personalised Songs & Stories for Ruby
Music 4 Me – Personalised Songs & Stories for Joshua
Music 4 Me – Personalised Songs & Stories for Jasmine
Music 4 Me – Personalised Songs & Stories for Mohammed
Music 4 Me – Personalised Songs & Stories for Ella
Music 4 Me – Personalised Songs & Stories for Sam
Music 4 Me – Personalised Songs & Stories for Charlie
Music 4 Me – Personalised Songs & Stories for Abigail
Music 4 Me – Personalised Songs & Stories for Isabelle
Music 4 Me – Personalised Songs & Stories for Aaron
Music 4 Me – Personalised Songs & Stories for Dylan
Music 4 Me – Personalised Songs & Stories for Daniel
Music 4 Me – Personalised Songs & Stories for Jamie
Music 4 Me – Personalised Songs & Stories for Molly
Music 4 Me – Personalised Songs & Stories for Ethan
Music 4 Me – Personalised Songs & Stories for Sophia
Music 4 Me – Personalised Songs & Stories for Maisie
Music 4 Me – Personalised Songs & Stories for Daisy
Music 4 Me – Personalised Songs & Stories for Phoebe
Music 4 Me – Personalised Songs & Stories for Jessica
Music 4 Me – Personalised Songs & Stories for Chloe
Music 4 Me – Personalised Songs & Stories for Lola
Music 4 Me – Personalised Songs & Stories for James
Music 4 Me – Personalised Songs & Stories for Noah
Music 4 Me – Personalised Songs & Stories for Elizabeth
Music 4 Me – Personalised Songs & Stories for Charlotte
Music 4 Me – Personalised Songs & Stories for Olivia
Music 4 Me – Personalised Songs & Stories for Emma
Music 4 Me – Personalised Songs & Stories for Alex
Music 4 Me – Personalised Songs & Stories for Callum
Music 4 Me – Personalised Songs & Stories for Jayden
Music 4 Me – Personalised Songs & Stories for Luke
Music 4 Me – Personalised Songs & Stories for Adam
Music 4 Me – Personalised Songs & Stories for Lucas
Music 4 Me – Personalised Songs & Stories for Leah
Music 4 Me – Personalised Songs & Stories for Liam
Music 4 Me – Personalised Songs & Stories for Niamh
Music 4 Me – Personalised Songs & Stories for Logan
Music 4 Me – Personalised Songs & Stories for Bethany
Music 4 Me – Personalised Songs & Stories for Poppy
Music 4 Me – Personalised Songs & Stories for Alfie
Music 4 Me – Personalised Songs & Stories for Sophie
Music 4 Me – Personalised Songs & Stories for Holly
Music 4 Me – Personalised Songs & Stories for Jacob
Music 4 Me – Personalised Songs & Stories for Riley
Music 4 Me – Personalised Songs & Stories for Lewis
Music 4 Me – Personalised Songs & Stories for George
Music 4 Me – Personalised Songs & Stories for Layla
Music 4 Me – Personalised Songs & Stories for Harrison
Music 4 Me – Personalised Songs & Stories for Nathan
Music 4 Me – Personalised Songs & Stories for Max
Music 4 Me – Personalised Songs & Stories for Rachel
Music 4 Me – Personalised Songs & Stories for Amelia
Music 4 Me – Personalised Songs & Stories for Lily
Music 4 Me – Personalised Songs & Stories for Alice
Music 4 Me – Personalised Songs & Stories for Imogen
Music 4 Me – Personalised Songs & Stories for Harvey
Music 4 Me – Personalised Songs & Stories for Ben
Music 4 Me – Personalised Songs & Stories for Amy
Music 4 Me – Personalised Songs & Stories for Lucy
Music 4 Me – Personalised Songs & Stories for Bella
Music 4 Me – Personalised Songs & Stories for Hannah
Music 4 Me – Personalised Songs & Stories for Archie
Music 4 Me – Personalised Songs & Stories for Cameron
The Planet's Greatest World Music, Vol.16: World Beat (Deluxe Edition)
The World's Greatest Nature Recordings, Vol. 6: The Stream (Deluxe Edition)
The World's Greatest Nature Recordings, Vol.5: Whale Song (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d8914accf27da1ba2355c1fe72726e96c4a850415893aa075703d88669ab46. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USY251778727.