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 0x33bc0fc01a3c5812897379a9107b8af66da978d6639628ad24d2573157a0a314. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/461fc1dd-d650-4406-9673-d16eb6f3999b.json and https://artists.proofprofile.net/proofs/artist/461fc1dd-d650-4406-9673-d16eb6f3999b.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 0x2bbe7750261993a8ff393c61eb6de1207d5057b980ba44ef7fc449473c93eddb. 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/CH6542132919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8655380938783a395a79d3775b149e4381139fb92bbd27bd45b44f617cc142. 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/CH6542132921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d0acccfae300a3833a32773149f4db2e9464b48d3acb31a2ccf63eceaadf37. 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/CH6542132922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1db31de45e7ec31196d7e5fdb13cabdd5f775160e6506ec23408cf424af9564. 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/LTE232300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e4d2eaa103a097ab27016f5373172fce0ee2e3f70b8ad609f75c4e47ff990e. 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/LTE232300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45770b9f4c417dbd078dc5fe0efc0a9c0ec22a05eb470f264b820c2571b0f73. 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/LTE232300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81571311610d128e3db001a942729272a7a3983d17c7cfaaaec3140fb4d2c726. 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/LTE232100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36adc0eb35d321ffcca5735f926552b894e8435ccbc1283a2dd3425e691e0adb. 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/DEAR41898238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa816c65db1155afbf1a90d3bc5b61a516c6f822c5ac0777e2244fd8423cc7f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2498120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031576a343bf5a6ebf5032f6bd9789cd7dc25a4dc5e8e0a7410c6f31e5120fda. 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/DEH742101337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a4bbbd400801935b66abda3ea09f00edd342364a21e92c94d98f28c0694363. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z2035409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd5130a62549e886034e0463d6c41dd05bec8aad034fcf12ef35440810ac107. 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/US83Z2035412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be1f22e59d82a490310869090410b339cb02bee12f96d9fb3de15939ed3d9c1. 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/DEPI82107555.
Reflect - Anton Lanski Deepnight Reshape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c8a6df160cdc440ec62483bd7c3fdf6882c9cdb4a53876d4e6ee2364df2035. 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/DEPI82107553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce03ee78c4eee52587a8e72047746dfddcac22f327a781672b3c58e11ca953f0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEPI82107554.
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
Sound Avenue Mixed 012 | Pedro Sanmartin (DJ Mix)
Sound Avenue Mixed 001 | Pedro Capelossi (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee277fd3a0f88f9b4d7cbdb23787c36ac360a889ad10d8652bec483e34eae04. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/US83Z2242488.
Kafka - Francisco Aguado Dub Techno Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c599addb46486f07780eff1b9f16542ffe9031f23e55f48c033dd681d048192. 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/US83Z2104059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0b2cdd8929a0a9e253389d71e7605f966079bb75aec2d58f3bbb6f96fdc584. 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/US83Z2044177.