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 0x46050e20fbefda410e8c71aea498096d12766e96937b723d7ede005e9757e799. 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/1e3773f0-7649-42dd-8f68-6e63ac4bf206.json and https://artists.proofprofile.net/proofs/artist/1e3773f0-7649-42dd-8f68-6e63ac4bf206.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 0x6b561ec19eb3a27c24d7450cf55383855cb455722e468625e2787cbf3309872d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEX261982802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f3fd5482003d69107795e99274fb740c94122a889ef8ff3992641269921e88. 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/DEX261982803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35da26f240d6fc9545aa7b748085588bb0d806c07e44b4e06fa78374fbe16476. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEX261982804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4da52eb2befa75f8001cddc0ad11a02bf410c838b9f8e7331449fdfd589ef2b. 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/DEX261982805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba0d0b8c8f79d0a9476da8fd0ada2354c7a7b67648d24db13814b5b39685828. 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/DEX261982806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86d8ef7404253ea418a8fd4f2cc0e9847ca398106dea5fe85c1f7c35c4ee339. 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/DEX261982807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a58e2b9eb93efff8d250a7dd3af66b750feb20e17244ee3e86bba50048dcde. 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/DEX261982808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6e5fd412088c1a11c30d12d7252e2c4572a91d3932090aedecac93d43dcac8. 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/DEX261982809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d78abd81421e2b5cbbcacbc7902ab0aa47f183365f5984083f17e7e93b79e8d. 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/GBJSN1108001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443d84be000464e8c4cd5d0e96501575bd7537d25ae35b49a38ec89ea219ad64. 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/GBJSN1108002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c4d615629300ad706531a2818827e55d4656d6b73857ae86dc96c44778785c. 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/GBJSN1108003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2864eab47ba2c3a567523eb66f4c6b6a9ebca77ae586194732f8047e06f3fbb0. 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/GBJSN1108004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33f594167e472473943861abea647b3320b8672a3a28fed8cefc163af1c5f7b. 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/GBJSN1108006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0912a5ee1ace29b2330671e09ca73976938e2d1db597b3bb99b63cda256a5d. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBJSN1108007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69205e3febba58c4e24f0289cc84e5f06a426fac8e16b86e8d2231aeb1342af7. 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/GBJSN1108008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae410a7ec1a3346f51d85919da7a8a1fc075abd42144ccffe768dffd4e6b29f. 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/GBJSN0600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d78d31498079aa950312be83dc37392de779bb2aa667d1a54e9fe4e1ab4d337. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBJSN0600169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee37c79158a1b18342cbbe62771a2772eb510039348645e3db20ce7c94aa3d1. 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/GBJSN0600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff521479264ebb2da55ef3c0aa50b8bda26f7635d2ef45a17e643a40b5b04a8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBJSN0600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dda0c1123caa09398ad21e9b51271d51e847630eef303c556611583ddce53f. 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/GBJSN0600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0906d62c14207c833650be76f6b721b48c5180ce5d220343254999d662c5a4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJSN0600174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d52ca293b1351abbc34e952df30f9c048d33bd59f6321deddc3d6c9e49fbc3. 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/GBJSN0600176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97aa4fb4479ed4d472ab8f617fe68d9eab37af2cbc4f8e8591879b2f082d8219. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBJSN0600177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76d20cce3254f229fe42738c0488690b0a5c4f5eceb928e1f075337dde38081. 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/GBJSN0600179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86d8ef7404253ea418a8fd4f2cc0e9847ca398106dea5fe85c1f7c35c4ee339. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEX261982807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb97c200d32ebecef00eaa49cfd6bd9cfcb2293e98ed795408e6887969c2248. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEX261480102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb532c8b6f21fe5ba4e579bd960aca349b887453addaca73844a5ed2a9191d649. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJSN0771501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afbac2d871ed686e2265ce93fc870b7ae013b8abd12fc6084852f211ad1de6a. 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/GBJSN0771502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b970005907a35c802590d5add7ff47d23099dff3b3c390a469ad7cc4d855a2. 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/GBJSN0771503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0f018fbf8aba7b17fdc135bcfc74aeb3bc656588589b8a5f3c1bf63444f862. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBJSN0600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67aa0c9341f333f547af37408f1741ea29c100b4bdc2f48b6705b7a550b819a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJSN0600193.