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 0x7d55a4ec4063bc4a7d2a871ca7446a719bddadfcd739ca5eb209c6534d624a92. 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/d8037e72-e954-4faa-aa28-646a22a079a8.json and https://artists.proofprofile.net/proofs/artist/d8037e72-e954-4faa-aa28-646a22a079a8.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 0x9ee5a614a8dfb214350ef0cbe8ce8b762e6f351a127f1760b1946a81ecb7579b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BGA261613707.
Hotel California (in the style of The Eagles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1750fe61f7bed2e2ba2fc07aa246c966b6f947d841374b60113d5abd9c72ac11. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BGA261637007.
Still Got the Blues (in the style of Gary Moore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0269ab9a129c0b8f478414be4ef1095b41a019d161d323340837596410c4e2f7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/BGA261635815.
I Want You (Αs performed by Cee Lo Green)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0220c93a2b2be1d4a2804886a5dcf2ccbbd54d82933b03143f5356b93e2f248. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:31:08Z), 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/BGA261614827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd655afc3f5b4fcd7ec2b3ef16c98a598c66f70d4bbb782aab1a76e8f088f24. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:53:43Z), 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/BGA261770202.
Wicked Game (Αs performed by Chris Isaak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787cc5b67fbb0d870b2eabaf52f4d50d273d86c930598991ff8d8addba2952e4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:55Z), 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/BGA261769719.
The Quest (Αs performed by Christopher Bryn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f10fb2d5c630c23f267a23b3b5c0464862be3820f8619e63ee185d5a4d14cda. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BGA261769613.
Electric Avenue (Αs performed by Eddy Grant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2558ceed419522236ab147479fd8664b060c6ccf038fc56f501c6da40cbd6b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BGA671958020.
People Are Strange (Αs performed by Echo & The Bunnymen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb009669b9988b46291f02602b2d04bec5814a99938a940ea161266c4773801a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:04Z), 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/BGA671961222.
Pro Backing Tracks G, Vol.2 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.3 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.4 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.5 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.7 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.6 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.8 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.10 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.9 (Karaoke Version Originally Performed By Various Artists)
Falling in Love at a Coffee Shop (Karaoke Version Originally Performed by Landon Pigg )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe45999a0a06885f81a994b790b9a68a2b359b1b6cffb121f8c56d8b8895c48b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:08:20Z), 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/BGA672090717.
Pro Backing Tracks G, Vol.11 (Karaoke Version Originally Performed By Pop Music Workshop)
Pro Backing Tracks G, Vol.12 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.13 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.14 (Karaoke Version Originally Performed By Various Artists)
Pro Backing Tracks G, Vol.18 (Karaoke Version Originally Performed By Various Artists)