1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xea5e5678d411ac7d86b9165388f6d82fe40e6dd6d981e80115844721f2ab3602. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90c2daea-275a-4dd3-9cf0-307c685a40a2.json and https://artists.proofprofile.net/proofs/artist/90c2daea-275a-4dd3-9cf0-307c685a40a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xf423ad49feb636931c6cdd37b8ebcc31c6def86586a7c0b26b55a8f6bf13f8fc","isrc":"USJT10200043","name":"Dancing in the Street - 2002 Remaster","registered_at":"2026-06-01T22:57:05Z","spotify_id":"6FnuMo55jNECTDdS1nD5H0","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf423ad49feb636931c6cdd37b8ebcc31c6def86586a7c0b26b55a8f6bf13f8fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FnuMo55jNECTDdS1nD5H0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FnuMo55jNECTDdS1nD5H0.
Dancing in the Street - Steve Thompson Mix
{"copyright_id":"0xd4669fa1d23d604a5bb2ac0ddae3d175bd0fc423e10c6b38006dddae2903dd9e","isrc":"USJT10700319","name":"Dancing in the Street - Steve Thompson Mix","registered_at":"2026-06-07T12:25:37Z","spotify_id":"6aAtZxSmeYlHb0DiL0ozqV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4669fa1d23d604a5bb2ac0ddae3d175bd0fc423e10c6b38006dddae2903dd9e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6aAtZxSmeYlHb0DiL0ozqV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6aAtZxSmeYlHb0DiL0ozqV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0db9237b1218131e585827d9408eaa0ccefa630f86157974951c83677acc162. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3LQN1RL315Nhzvwvd7ZOEp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LQN1RL315Nhzvwvd7ZOEp.
{"copyright_id":"0xf423ad49feb636931c6cdd37b8ebcc31c6def86586a7c0b26b55a8f6bf13f8fc","isrc":"USJT10200043","name":"Dancing in the Street - 2002 Remaster","registered_at":"2026-06-01T22:57:04Z","spotify_id":"1vqbZvDzRl5QYWhK8PXOdz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf423ad49feb636931c6cdd37b8ebcc31c6def86586a7c0b26b55a8f6bf13f8fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vqbZvDzRl5QYWhK8PXOdz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vqbZvDzRl5QYWhK8PXOdz.
Legacy (The Very Best Of David Bowie, Deluxe)
{"copyright_id":"0x8ac9437ac06c2ff7aba57e4dc5e119a4d8bb2e18535b6691b5e838b7651c5786","isrc":"USJT11400021","name":"Dancing in the Street - 2014 Remaster","registered_at":"2026-06-23T03:36:43Z","spotify_id":"7E4XkhUfq8na04XeWF7OP0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac9437ac06c2ff7aba57e4dc5e119a4d8bb2e18535b6691b5e838b7651c5786. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7E4XkhUfq8na04XeWF7OP0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7E4XkhUfq8na04XeWF7OP0.
Paint It Black (Arr. for Harp by Kristan Toczko)
{"copyright_id":"0x2edfb81e5cc77caafb2073ae9d62e5332cd3577230a08dc0ad68f2f48dc67efd","isrc":"CA4Q32400002","name":"Paint It Black (Arr. for Harp by Kristan Toczko)","registered_at":"2026-06-26T23:06:37Z","spotify_id":"6p9ldZ1gulF2geInO0svLK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfb81e5cc77caafb2073ae9d62e5332cd3577230a08dc0ad68f2f48dc67efd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6p9ldZ1gulF2geInO0svLK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6p9ldZ1gulF2geInO0svLK.
Dancing In The Street - Clearmountain Mix, 2018 Remaster
State of Shock - 12" Version - Dance Mix
Club Epic - A Collection Of Classic Dance Mixes - Volume 5
{"copyright_id":"0x59b17f2bb18f23a8a2972ca1d302c6897a369aff2e94f449bf1ddc654f3cf4f7","isrc":"GB01A0400006","name":"Old Habits Die Hard","registered_at":"2026-06-04T07:30:21Z","spotify_id":"2v5f1poqSuqkNzHOQD4Ej7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b17f2bb18f23a8a2972ca1d302c6897a369aff2e94f449bf1ddc654f3cf4f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2v5f1poqSuqkNzHOQD4Ej7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2v5f1poqSuqkNzHOQD4Ej7.
Blind Leading The Blind - Acoustic Version / Live From Abbey Road,United Kingdom/2004
{"copyright_id":"0xa39ecb5d35cc41caaf148954266c211ae9eb5e148d7124e19a05911fddb07362","isrc":"GB01A0400017","name":"Blind Leading The Blind - Acoustic Version / Live From Abbey Road,United Kingdom/2004","registered_at":"2026-06-07T07:08:12Z","spotify_id":"5KUdDvQg3gnwJ40z29G0hX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39ecb5d35cc41caaf148954266c211ae9eb5e148d7124e19a05911fddb07362. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5KUdDvQg3gnwJ40z29G0hX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5KUdDvQg3gnwJ40z29G0hX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559b4de0edc4a0e1b1266f6634f2acdc962ab5464d8b01905bdbc5894e374b98. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5S56TPzDAhlq2WqEgZFF3u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5S56TPzDAhlq2WqEgZFF3u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf80583da796f3f8d2011fe467c91b03f7074e0d29dc11dfc5d77e82888d70b0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3CfbBwJ3aGWjsnLDHfst6T.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3CfbBwJ3aGWjsnLDHfst6T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9157586777d61ca471b92c069bd7d7a73263b72466492c05ff652882395fa212. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GgzToerhQ4tmHU3Yqqx49.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6GgzToerhQ4tmHU3Yqqx49.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719181d4638e109e148e92a70c70c9ed64927e976279727eb9ca91f519672c62. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0mQYdLzSu6k6nYy5Rb12Pd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0mQYdLzSu6k6nYy5Rb12Pd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc710d04d6c0247f5a4666da24bad28cb3a1d92b1f158fa04400e4e69f0e27d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0RG3oIMbAC19mSfyspT6Wr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0RG3oIMbAC19mSfyspT6Wr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917add3350aaa8acde2624c020984dc301a2e738aa3c7af62b7c8c7410520fb9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ub1gRqRwhwzYoLTCsu2cM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ub1gRqRwhwzYoLTCsu2cM.
{"copyright_id":"0xa6cae195e35e7d129242e72fd0db8dd7c547f2d8db1755e2938e2d5179ea4137","isrc":"GB01A0400008","name":"Blind Leading The Blind","registered_at":"2026-06-07T19:38:47Z","spotify_id":"2KawsWKaaAf3cOLgIPql62","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cae195e35e7d129242e72fd0db8dd7c547f2d8db1755e2938e2d5179ea4137. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KawsWKaaAf3cOLgIPql62.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2KawsWKaaAf3cOLgIPql62.