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 0x67ad857dc03d3265294e46e96f85e1acbb186ebe876a339f7046fbb1fae0896b. 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/1b33e4a1-8985-42f6-9574-83d6420c3665.json and https://artists.proofprofile.net/proofs/artist/1b33e4a1-8985-42f6-9574-83d6420c3665.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x01fb9b131fa20c5d5af180d5392aed59d16f1583c42ace541e8cf950c828410b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977716 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c14989c9f3c870cf4f4caffcf958630c4574bbac4b0589457220e568ac2fbd. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977717 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c068c80dcf9036a4208b072a4e0e6aa740e72d4442e6c8889b2c2f68a72afb4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977723 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018db8d670da6f09c81601a781dd7741de1ad380e84c1079e21ddd6ff2ebf16e. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977724 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bbd1bb34ba2b469fd6c99cb5c7a4fb8ce0d2130edb731fb8ae127157da3125. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977726 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e68c3489b6eacf390cd972a06ba6154e7ade4b5712fc7cdb5075505ae7837c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS690977727 — a six-check JSON result.
Let's Get Together (feat. Srikala & C.C. White)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0730813cefe2dec3242564f999fc856e579f09676003f575d33411d68ccef426. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS691377787 — a six-check JSON result.
Cañamo Medico (feat. Metsa Meni & Chonon Quena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb66aa134d8a213be11a38926079a433a8362e678c2e2f5a0967af37d666bd1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS691377789 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08930c4b058b946704103c2a548b792c534b2da33a8a88711285f259347f13f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS691377797 — a six-check JSON result.
Rising: EarthRise SoundSystem Remix Project
Awakening: EarthRise SoundSystem Remix Project
Always (feat. Renata Youngblood, Dave Eggar) - Nickodemus Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29fc64ba0c06e2b68808676c9f69c36e72e5feb2211e1898e0abbb35fdffdea. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBE21501501 — a six-check JSON result.
Intention (feat. Morley) - deejaysoul & don_cerati Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bec84e9a2771f8f3c14c09a0cf45542538df3e40828350af0659880e0d04366. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBE21501503 — a six-check JSON result.
Intention (Instrumental) - deejaysoul & don_cerati Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b7bce39b496492d1642fb2a37be153bead687dfa9431c9a3424b87e8c7b7f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBE21501507 — a six-check JSON result.
Expanding: EarthRise SoundSystem Remixed
Floating: EarthRise SoundSystem Remix Project
Sun People - Earthrise Soundsystem Remix
WonderWorld: 10 Years of Painting Outside the Lines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696e3c7191101001be870fcc22217b25b58d9a78f64fc4f85f6a8448e18269f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1310281 — a six-check JSON result.
Egypt By Air (Earthrise SoundSystem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf463d548b7d13ea835412fed987aa5a9e3041fb78b256c83c1ff0daf61815f99. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6DR0901449 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c488d5227d1ba2e2f1a04bd5145cf6d19a5edc2069d7b7a4fe2216fbc44ec62. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWS41112410 — a six-check JSON result.
Guru Rinpoche Mantra (Earth Rise Sound System Remix)
Chill Yoga Music 2: Power Asanas Dub & Reggae Beats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a87190c561284f9e5d1569fd404d623ac9bf63d49f771076c060d4d6be161ee. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWS41918612 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e197bd0e5d318dc95f2d2bee1ea2b510e2a29acb6fb293830364bdd0a7e346. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWS41918618 — a six-check JSON result.
Guru Rinpoche Mantra - EarthRise SoundSystem Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696ce7ba6b3620d4331f36b286bfa7e3815763bed9b10caaa1054558d105bbee. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWS40909401 — a six-check JSON result.
Metaphysical Fitness (feat. Srikala and Luminahdi)
EarthRise SoundSystem: Remixes Are Songs Too
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f1c240fd72643705e904e0b6b8b74a89749f5260c96382cfa1560799e5ff0c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS691377781 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0712ea12260dc3e22501c243c1249b7461bcebe4926e690658abbe5a3d345c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USS691377786 — a six-check JSON result.