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 0x257c9c5b5c382b7e9ce47db9954007991ff27b12dc2f9a12ec0b6c2fb7952408. 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/05451e10-0631-49d8-b7fa-817509f004e5.json and https://artists.proofprofile.net/proofs/artist/05451e10-0631-49d8-b7fa-817509f004e5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Prettiest Flowers Will Be Blooming - Going Home Version
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 0x4e492cb85b4474088253e261dd9c87b9130a69ff1d304e4961fafdc708002d64. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270403834 — a six-check JSON result.
When All of God's Singers Get Home - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93f7e6303b86adc25d55c3a6ee0ad8cae90782f3b5c564dd9695e1a18e55449. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270403836 — a six-check JSON result.
How Beautiful Heaven Must Be - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2200d3803a05d19ef5b3c65f3f95e857d505e8e144d4aa887c6aea84ffd369f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US3270403839 — a six-check JSON result.
Where We'll Never Grow Old - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26459b56dbf7ad326466926676876b580ba6f1e5ef5c4e85f7916adf9b16d6c7. 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/US3270403840 — a six-check JSON result.
This Is Just What Heaven Means To Me - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6066ccf01ce401888206527c72e2eea96f0387fae4d8f02fc1bea692d1bdbb9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US3270403842 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4a8bb6349522dd7b95e0545edc15fd99e36482bb1d91c617b590478483d95. 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/US3270403844 — a six-check JSON result.
I've Never Been This Homesick Before - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5301eac02262404ea7bebba81905868750501ab1237adc7376004a3047245c55. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270403846 — a six-check JSON result.
Home Where I Belong - Going Home Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06ec8a1cba67e9144b1275c47a3549d88734516080ef98d2e90e5efa5cbe30f. 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/US3270403847 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aaf71109bc0b5529a5911fd73221fbcdb762a4eeb4b0d5268d7eaa7b448d73. 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/US3270403849 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ba1fd1fdf28d1a577425c74fde5648fa7fbab56e99e20aeb636b53445c188b. 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/US3270403177 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf387eeabd940a7efa3e97344c099ffd83104ae801c3bec86d1aed80239298c. 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/US3270403182 — a six-check JSON result.
Crown Him King - Homecoming Classics Vol. 12 Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf235c21feedfb172a9532ccb90e31c1235b1e481a65c77c37b2ff0193ea4903b. 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/US3270404798 — a six-check JSON result.
Glorious Freedom - Homecoming Classics Vol. 12 Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bed7df531bd5766c50d2af8435c1f851076a37cb0c9d67829158d86acc7dde. 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/US3270404801 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9251cbe662aa0b8fc6dfa0aa13c4b1a713033d98f67a28307ff36bfcc2c78f46. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270402005 — a six-check JSON result.
Feelin' At Home In The Presence Of Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f270a98eefd217b891406a0185c9854e41b85b57f96f8c117034d62f5468fa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270402006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b887e07b717f6ed9f6ca2e4a83ddd5ed6141aec87434ea0ff21bef47000fcec. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3270402008 — a six-check JSON result.