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 0x1dd43b801aab83f39147007b4760b3b809dedbf309a086f643662b0d86c7282a. 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/555b0fcb-2d9b-4698-9273-71c97ffdc789.json and https://artists.proofprofile.net/proofs/artist/555b0fcb-2d9b-4698-9273-71c97ffdc789.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 0x4215f74badf1f5d97ad73183b302ee0585ddf846c1c84f7221794013f13e6471. 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/US83Z2234964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b01bb498bf201a126c7306e6e59eedd9598d42711d203d120a3dda55895c85b. 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/US83Z2234966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02685214ce34b60950dbcbfc0cfe684b9661ea65acab18b3b43561662b20247f. 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/US83Z2234967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8db2e22c5f264586b16bc9852d29eb30fd99c91f19c6785879970610c4b084d. 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/US83Z2234969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f399c39f2d647ed815e9251d222275d9346466721a56d175894069cc897de0a. 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/US83Z2210260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b732f7d1d2fff673ac21f70e983c421139f44e00e0eb5dbacf9dad50cdd403f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1730128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e2baa38b7840af9a7e8e1dbab0c907db82e683e4e382b220337e642242b723. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1730129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1cd9287350a37ffe7d3651559329dd4d9195c4971d668705b5620b45515c4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1494422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bb8d0374e740fc7573f59db764d7838d061b7d6514a96a35a1efff4ee47991. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1494423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b0498df02270b2084eef99d2f30e4d7757bc4cbebd28cb4fe02d98ea41c039. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1494424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27be9c46863f329665b35672b78a33e948a39936bbfb07fbf1568c3d48d0a8a0. 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/UAIV11700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8430dc5c491f91bd4bb091fa2ed2e233416f66b818d4c371519a999b080e5c00. 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/UAIV11700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd840ca19e8ae7473598fca64267eaaac65d000d11a5e2e031f54c23eba293d. 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/DEU231703008.
Reflections, Vol. 4 - Mixed by Ambientologist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d685692ce771088bc6798ea5771c7f467f8a407bcded36a553070446328640. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1541650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c1dd4f421f89ca3892ce5f64a3b9d8769606456df7b2dc81add4b31ae9e58f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1498031.
Slow Down - Claus Casper & Jean Philips Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb279d77deeb5edf647854362afdc01fb96661690bda42adc46f70eb60e225b1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1473684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256e2a8d2845678515b33ac4165cd7a2ede5af7b86eed191f3cafae89e65e6d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1347516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd9f28736c209508c2b02045c07b6c46b0b7913adf58acae06082c576d0194. 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/GXAPV2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe145cbb12dca720e49b81eed9c997e85d1d04c898e82d6cf15b5340ad325d37f. 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/US83Z2482303.
Deepalistic - Deep House Collection, Vol. 11