1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x48f7bb58fa28c81fc74642722775f0c665162b418c90bed5b60c1ddc1554a41b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90ec73ed-6ad7-4160-b9eb-fe3b02c76db5.json and https://artists.proofprofile.net/proofs/artist/90ec73ed-6ad7-4160-b9eb-fe3b02c76db5.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 → block OTSBitcoinBlock must exist at that height 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 0xdd21cb0159aa54fe8ee8840a211beda30d0d80e570e63c0bc1368edcf392fad4. 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/DGA0M2490567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc16cececb64e765d8905e6d9ff9bc2c7dcd4740ac173e719fce9ef14fe2d877. 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/DGA0M2490560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13314c0c3ab1f2c8ff9b178f9351b48d3226edc5768032e66a473482ea8f9990. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2490570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcdaf060d1a07b0fd5593ca636a092d08a8f4103c4ef6f171673aaa98643ad9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0M2476246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a54911124ccd40f15504273345ac72a91dac064e142ef70a28c1ef2ee7797c. 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/DGA0M2476236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65348d5c01dddf41a45323b42536d2c088e2bb863f00c35fb44e68f7de2ed75. 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/DGA0M2476242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3059b6013a07726f24454beed16717dc769f20d7270b5c59e517eff9b05d4a5. 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/DGA0M2476243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af8b8c579f25be4504ed8033bf5c0cfc582dbdce563f8347b297ed7cc6d14c3. 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/DGA0M2476254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b629af8b8804b571526b5f3685bf7a8b168462d21176ee32ee2dde29877ab24. 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/FRX282353334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169dad5df7ecf4d7bbc409fc1b6c49a515cb1d0182a43c4d6ecb5222b5ce9112. 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/FRX202371928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770eb50c4a4e6797313b3d58039e5bc9aa7ae7f4bc143d8d012a83d4fd6b1e6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0M2475131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eac63672facb3e6465cdcef8288ffc92bb2e5c13fe2fa584fe347cbd383bd5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DGA082313606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9621940ac118c17c0d0c2da8cd66e8c1381a81b2e18b4260f5665fde6576e1. 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/DGA082310541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eeed6a544513ff298f01d1279aa20574049f703389909a5560da128f8e66fa. 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/CNUM72400642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ae1f13cfed80a78cbddf44bf20a936fee923d0fb942f5b9b07474b7c714830. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0M2476229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a334131f4da5e2496676868190d06118575860b55d8f3c34db9338107da1c4. 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/DGA0M2476232.