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 0xb9cf0286bb1214e5f8f4db5b852a52b777c2659b92ed850f4adab7176d0ba10d. 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/8a2e1687-7e27-4454-a04e-7e8bd57628b0.json and https://artists.proofprofile.net/proofs/artist/8a2e1687-7e27-4454-a04e-7e8bd57628b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
United By Grace - Unfailing Love (Live Recording)
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 0x7f7c8248b6307a2a1792a8029b8f961d5326bd6d68227e8ced01afe87433f540. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IDA142301812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fe003802baee00950cbfcc0d118523be291f3e1932a3b7a5ce6ebfe72f7b63. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf290dee5177ae47dbdf8437582e651ac4a095d1fe8d1c817e5d0f9a7cb05bf93. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f669376b9c26a8feb80e58e0aa21c2e6496a885e3a7ba2eae799b2a8edb5d05. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301815.
Selalu Baik Engkau Bagiku - Live Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee9f3e135c0c66480d72163ad8bd1eb051808282436521c053fbf67071ee70a. 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/IDA142301817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88df55db300956476435acb492457b2f236fcd088150f2ebc7462d87d9117c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IDA142301818.
Satu-Satunya Pengharapanku - Live Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6429be0d0881f11032c949b29202d452d2648358d0031bf92bc367e105ce97. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IDA142301819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a955dc9a3fd54294a3a1ec1ab38eea780f14c4a46fc8604a6f7f601a82fba9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA142301820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54ffd7e6cc62113ffd35bbfd309f8f76a327023afeeaf0429c1a55cbafc6289. 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/IDA142301822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7941410a39c9b59f42a474ea9197abed5ce4bd9534fb071f79168e9b3baadee2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/IDA142301811.
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
Overture - Unfailing Love - Live Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe8a77176d3d3602197c52c2546dba022d6399d3687f443e3f82e6c47184862. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/IDA142301810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec6fe88fe0eee707a9291fe2ee052d4653d44eba5c2d54b7f319e8f66656ab8. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/IDA142301816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719451c6625908129dd71ff2792d778e95037fdaec51fad14a281000522d4528. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/IDA142301821.