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 0x10dd66c998456f1c9c13ed7030f14a897d568a5341c8074213eda554bdb39b6e. 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/8a9c143b-041e-48d6-a682-ccee12362d2b.json and https://artists.proofprofile.net/proofs/artist/8a9c143b-041e-48d6-a682-ccee12362d2b.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 0xf36e7b9a33bcda8f20de6848ed6c93f5282535b5c8f912db28871d00165a919c. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/GBKQU1149422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef733445e86f140454bfab9b064c4451463b07abace7ac581ce5013ef463cba. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CH3131600004.
Spread Love (All Over The World) (Massivedrum Lockdown Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d04d3915db7183e838a75d887f368d6e461b9d4430c67524799ebf6c07beaf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLV62032235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d292ff3f15ecb04d8788ef6763fa0da5bd70eb9b79d0ec9c760d571840686. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLV62032236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c457910545a602a8bd549e35a5ef20129e22aca44e0cf5484ef9d636636fb48. 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/GBKQU2482524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2abafdffbf00ee6e2562c63753b0faa4d528e9b692b1dcb60debda7cf57b02. 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/GBKQU2552583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a32ff627fe8dd3e8597e6ec743da8b1419873a2f868fc78e3a80509fe4bc9ea. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/PTVI11000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1783d0085280893f98a04cbdaf76a5ddf009b04cda482f11fdbe102525d73b1e. 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/DEU772200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04991587f764bf6c644ad388645a9a1a3521b305252257ad269e46f95bfdd1c. 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/DEU772100005.
The Bomb! (These Sounds Fall Into My Mind) - Massivedrum Radio Edit
The Bomb! (These Sounds Fall Into My Mind) [Massivedrum Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd919fb48704472505910af8f7b6268abccd77a93985e30d14f92f982c00fb15d. 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/NLP432100173.
The Bomb! (These Sounds Fall Into My Mind) - Massivedrum Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2b62df4d4ac62d00f85cc91d3adc86b1f7a310da67911cbcd0b9a24ea2a260. 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/NLP432100174.
The Bomb! (These Sounds Fall Into My Mind) - Massivedrum Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a76032f32c20ac176bc55240c44914f774c99d0d61a3420ff03a63cd4b41635. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLP432100175.