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 0x106b109195f7c2036112f6ceac0e6d3ec090c7507deea9ebcc39bcd59709a8e0. 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/aac72499-1ff9-45d2-9a5d-517d9dd5a53f.json and https://artists.proofprofile.net/proofs/artist/aac72499-1ff9-45d2-9a5d-517d9dd5a53f.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 0x9917cbce3f6f0f2c439222c39901af603f15c476223610820e633cdd96c94c46. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM6P42439740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e4b35cc831d6be86bdaa135ba84d18232727af45377b040ef80158c72d6ce5. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QM6P42439746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa01bd5f88489ede483f561fc6205b7b1683a8f9fcd0bd6b8d81be5d0b0ce4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCACC1424734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb25234ba596d43c09e1bf5f421627b7a4ccdce865705f0126bd70ed8de7ac1. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/TCACD1577869.
I Really Want You (feat. Grey Paluszynski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c8d150c82f658e88d090b9ccb099a622e71e6bb5d0193d33aedfab4380ee3c. 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/QM2PV1747794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4fc2e1f4b44b6e64b38369f9b752dcd32b4391b58eb95cbf7ab48fdab44d52. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM2PV1747797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c8d150c82f658e88d090b9ccb099a622e71e6bb5d0193d33aedfab4380ee3c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM2PV1747794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2054e9039cb24ba991ae65d8f9e5ddb215cacbf2238f42d39edb52090ad3ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMPKX1727188.
Stupid Songs for Stupid Girls, Vol. 1 (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7694f9fa5f0ba5e2bf3ac24b1112e7ab3c2e39c6279a2ff15d03f1c8e6ca0fe2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:28Z), 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/QZANL1716319.
Stupid Songs for Stupid Girls, Vol. 2 (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd8284adf32c2dbd0b77aa7e437c7c6a349ad5d707d52636e055924e180b022. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADR1883903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781069e54f392f549be503d86ad551b1e45bbb121bb63366ceabf846ec990050. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:39:35Z), 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/GBKPL2283509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d872a2d27841a1d36686bb579a326850eb77358871c2d63206f4b94b06b0e03. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/GBKPL1938518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526ba7df7e2cd6fd5bee04935b63aca08037e313599c586f922acd0f5fd592a1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBKPL2158742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aa95e047bbad2886a9b5b756eb388f9b8c690ebf1c16ef356d602511ec47b8. 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/GBKPL2158735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eeb0768af6477a861deeded7f617a0e2f77f625c0e0455affc5c79fcf90703. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:28Z), 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/QM6P42458381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6ed72ab91d15ddc04d23c2b4cc0fc8659102cd94b8cc6847b4cf922febff36. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QM2PV1747802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3425f58024b77758253844543165fabbd02a37e0e94b2110044a164d12361c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMDA72292436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8addca58bef6e001aa1d2bead155833aa506958cc2d01b9eff124955df1b5bf. 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/QMBZ92338169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3425f58024b77758253844543165fabbd02a37e0e94b2110044a164d12361c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMDA72292436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f47a4f8d5536aeb2414e5645a087db727477556c895343f704e4576e9970d3. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QMBZ92338188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c510d208f96cf189beae08eb5534dba5b8cc00a0ab2d4c3470879752cdef786. 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/QMDA62283249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bb9bdc892ec782ca9f9fe17075faad081adb15c429cec310ea52164cad2519. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMBZ92338205.