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 0x56262de0a728c57bc6a028bed45ce2dcac25e0a5b04148ef4c88c3cf96b311ad. 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/6211f6c6-5511-43f4-b96d-e5207e002471.json and https://artists.proofprofile.net/proofs/artist/6211f6c6-5511-43f4-b96d-e5207e002471.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Louder Than Life (Live Recording Concert)
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 0xdaae4e4be94a5d7f8860718fb1d53ef067d91a60fde71771e3d54b4cae9f9f2f. 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/IDA141000334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c73b48b246530942d4205b1af002dc3ecae6f667f24c23ffff8a43a1937ca. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/IDA141000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b12f31e85b5abe6f320d9db2c4929ce44e179fdec69dab43d187ad54fadf05. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IDA141000337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06908320abe48c9426e9e17a1b0f831b45fecbc45e1a2848e517ff72d32de34a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IDA141000338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dbc96bf6f84d8da6f7ae9395d6a096daec70ebfb63e2b064e7d0510a54dd60. 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/IDA141000339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fc07933da0cb161b78650a5bf471674e9930b7bd4392be452ba30e24faa604. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IDA141000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd603783247d2bc4cd15d02aa5e62e557c27a24a2ac05827fa7a8905a9be44633. 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/IDA141000353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d758165f18d54e26e2b9ea2202c0ac0d62aea5c48b06cb77a8f50de86c988. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:02:20Z), 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/IDA141000340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fc0c914076138cd3587e63a2d38a9202ca247a1a9d50216fba2b88e141c635. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:32Z), 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/IDA141000341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860d739e25477caa58978c7f2e05c54d40efec0d47e7e09c2cc45f9cafba833b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/IDA141000343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c72facf0873e32d638429ec261ef40333bc92d57940edf23a745ab061d8c78. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDA141000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c7b15a004c8c65f143be8d95c1c641ea28127c8e5ec63d154dcbc10a91fe1e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/IDA141302378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9be2a28d735ffda28a6d386d1386cc55d3ba8b7c6f2947134f6bb9b6245a47. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA141302380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c62cfe4a3e10f0092585fb09acf2ba2a9883e00cc4d2c815b38c47f3204516. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDA141302382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d78ecc97325186fecdec0aa684c7d94329abd03cc91cd7062f7238f092aad4a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA141302385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd147128bfe4d2fb45938941ffe424503c80093d52b309fa1840e1ffe0694bb1c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:44Z), 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/IDA141302386.
It Came Upon a Midnight Clear / Go Tell It on the Mountain
It Came Upon A Midnight Clear / Go Tell It On The Mountain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98c4263611772643f5bf0433ffd79e05134465a86be3e5a3a591c91cf74542. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142200873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cfaae50a9d4b9567ffbd04cfe47d3f60f7e87a40db1633c62c30bb994dfa57. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142200876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8dbbcadd38f60526387b632934d2befd401d04269464fcb6231d1ed2549e46. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/IDA142200877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6484243a42a5d28ec9adefb541f7dbf3a3b27979f6843e285ff517c2964c0408. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IDA142200878.
Selalu Baik Engkau Bagiku - Live Recording
United By Grace - Unfailing Love (Live Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee9f3e135c0c66480d72163ad8bd1eb051808282436521c053fbf67071ee70a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54ffd7e6cc62113ffd35bbfd309f8f76a327023afeeaf0429c1a55cbafc6289. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafbef30ed16cc1c1ff3c2fc0261454b3c4751cbd1c1ea7da6c6b172a3a388e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA141302150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89144755e20622e5b2eb1e5b172d882dfb5cfdb683dd0741b15c65fad040b1e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA141503980.