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 0xad7d00d75336a969f8eee1075b44e47981e9579fa7a87f15771a9427e72026fc. 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/181c54f4-5ec6-417c-9cd9-ff84b8ae35cf.json and https://artists.proofprofile.net/proofs/artist/181c54f4-5ec6-417c-9cd9-ff84b8ae35cf.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 0xf8103eaaa52d4f01bfa0d0856c7c9ceea297ab8c11fe3048eafa69b4d14013c0. 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/QM2PV1886876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bbbac385a0d8a88a352afe2126ec6ac8741e7533e0b9e5e1a45ac1dfc4c5e1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM2PV1886877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a879a70656de3530686617d0d5d2def4d9059c593c7f7cfeee4f801c272bb6e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZHN31985545.
Are You Still Seeing Graig, the Orthodontist?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f9d775e68e751d2dbe0897222ada2a966d2ac6b7693b8695c71f43ff7ac686. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:27:31Z), 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/QZHN81914638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe801b210b3b14b017229082d57f200762d391acabbba466ed8c50a22028d1924. 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/QZHN81914640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48815b897e3f3b3b192377747e73798e0283f2918049ddb779e0ea0b503dc919. 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/QZHN81914641.
The Water Temple Is Filled With My Tears and Now I Am Drowning in Sorrow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3b2d5c5c32453c82c1a2e95f81aca7de629b50c8a9e4653039e162eac40c6e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:55:08Z), 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/QZFZ42017399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6407b4a83da476079e84fca296f3c25b6bc45ca662358bdccfb9e414525f1b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:32:15Z), 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/QZMEP2018980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2962c3018fb93346d02917641b7a1b76277c31ae521c91f335938f724f2f185. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USA6G1880104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961c412025d9f96a59bfd31f0900e5f5ba62b31fcf85cc7807146e37cdf821f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USA6G1880105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f63b21b6e55c69ea5575d16d980b92a9eb641400eba2f7290e966fa63d7ec47. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/USA6G1880107.
dayz gone / black lodge breakfast burrito (limited time only)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53564e9775d1d58f1b1c853682b2add31c7fce908b275bd39fbdb318f1f18514. 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/USA6G2410002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ba5d4df0f65a4f6b04e33eda248e044a26ee62161d1f80e36b9597ec4e2f31. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:17:39Z), 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/USA6G2410004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1360a7271bef00cbaab001da407ee7b4e2deee712c6ee95ba249bed956456435. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:27:09Z), 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/USA6G2410006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805f301ae126b457a9706202a77ca1c14b6be3d57390c7e96b4cc466f5a08846. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA6G2410008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e5807c097d0d30976dedb15fef418373df03e915aae55a3bf0379e18080831. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:23Z), 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/USA6G2410010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4215fa71a1a22ae871963adcaacd65aef04997b50052eff4c5239628b3ffc4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:23:54Z), 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/USA6G2410012.