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 0xd4d780b9abb02cb785ce41616f96437f07c2a53659ee6ee63d1a6afa58ff72c3. 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/93299335-6dfd-4818-bf18-f1ffd84df6f0.json and https://artists.proofprofile.net/proofs/artist/93299335-6dfd-4818-bf18-f1ffd84df6f0.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 0x105cbe0f26c4b2b1c1bc90ac137ca51e3df7d1b3a155168b49e2b9c5c7f303e4. 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/TCAEL1952158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eee030f7a87d512c3f2fdec29d00b0fc54d89369f5dc510ba19c756239963bf. 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/CA5KR2125150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119d626a9a0063559f9c6924ca126387ba724a26cc9c6c099827314d646cd6b4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:39:11Z), 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/CA5KR2167483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d921fb1d57983532181729ddc5df6d36dea8b7d0f364b26241716b1ad103ed. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA5KR0002487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f025835a3e06f1b17f5e5a46ccca71aef1f97ca9cd537be0e28a085b60cce4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/SGB502250249.
lorD havE mercY oN mY oppS, becausE I won'T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9808a4baa67e8d943290577ff8ba8939ce9baafbe14339661300251b7fb58ec2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SGB502253989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d91c0f7118e77dedd9e7138b5135b639393d7f45daac79d4ca9b59d99c6d8c. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/SGB502381750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f72cd6eb36305b8c9bd8d8791f44f1a0f8020683927b653fd5eea0b369f2571. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/SGB502248051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928cd192d1e72242471ec21378224fd522968ea3c45c07ec80b4d6fb45d41caf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SGB502390741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c1ae9a4749c390c4f4a7df02e937297c0a2389c44f45ecbfa90c4776d39494. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SGB502391999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727d5bb1dacee5058df989ff563932e7ea83ce61b84dba20db80c0a2af3bfc55. 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/SGB502392563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028d2c2883181fe9bd64eead027dc86e9d1922555edad41f86a43d9ddbadec2f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM4TW2436333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0136bd5fe01a1ec5fac69ca796a6a7497518bb9b1818b006bf7ccc04c0168b59. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM6MZ2415795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea06b64934c6e2a8d6e9b3a3004d58ed991e7a7304a280f7344d2b31b896393d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:33Z), 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/QM6MZ2497941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585ab476698343afa7566ea24dba764fbbcdb59ce4a355ec215dbffbcce22483. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SGW502508698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de40156becb63e7b850925ede91a42f709e62c1ec179b4693bf63a3737092c1. 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/AEA3A2001228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c0f49ad08626db1ee9ea8f0f414b303e7020ac1cb652e017d083c6323579a1. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/AEA3A2004341.