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 0xf64675d73603dde5df226b67d0743284ca6dbd2371d96361c8761de621ad2290. 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/d8c511e8-e1df-4cec-a867-d5c9f4152649.json and https://artists.proofprofile.net/proofs/artist/d8c511e8-e1df-4cec-a867-d5c9f4152649.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 0xd10a6fb29dc6f2bfc7e983629f308e2dc9797f7dacb5134c080ef1779147cbb7. 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/QZES82257738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938e030e6cad73d71b69c3a22f295750cca8ef6c80157f3b4acd7ecdfc61cc0a. 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/QZDA62266432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9acf389f0a5d9dde46ab96421caed0600dc10ca30b0a20864e6b6d9cff329e. 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/QZS672223124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207c26d030622425a782796d95fefccedd7ecf6534842ffd82db64df9f8a41e1. 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/GBKQU2199655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4314b62e40ee7235b755f99bca86498e9b11f5544c22bd7ecd10ddd733411c9c. 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/QZS652138343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b9116acbe13276a2a069f191a1dcfe6b67859da59ecd4819bd153fb7d1e07b. 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/JPB602102446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4943aa9564d7a54f173ca02315497c9bd17e8f88c494c7f1c0bc6deaf5ac19bc. 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/QZS662100533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381a331a2b636c868b8f415b242bf8d3883e20ec4ad60bae0532226876a47fb8. 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/GBSMU9839571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d549c12bf3391a66fa243b8c1e069d87847d8353993da068f184911a53337e2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:36:12Z), 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/QZK9T2100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef95d0deb60d27d407b2e2c057d3cc8ea62c299cafaf25271fc7914823d43c9. 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/QM42K2104327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc223fbdc6d1a0d17c212d7257528ea91091331e824d063f28629b57bbcbeb83d. 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/UK6KW2000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1d35edc80cd30ea986723c2d6d481a64fd76f68ab2f7596b89cb1da57662a6. 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/UK6KW2000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646369bcdc70215a03448fd4902b39f6fc21b100011984b7c9c6d3db66e44754. 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/QZKDK2013839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826778b19f8fec913ccb5d653f24802d5807756042532b7e84be0edf50c6eb49. 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/NLRD51967459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc53cd87c006548b98a8df875dc545350827b63468ba667b97865fd3822e71b. 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/QM24S1924634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14265286cf434f61339d77bb76a5b90a338b11f6aad8a76f2ab8930a24213bf3. 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/SE5IB1900823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee79f1e4060c429f82f859511a07af84264587fc57b6c8121d8b2f23c15aad9. 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/UK6KW1800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb772dd254ceb6a6d51685e09f4414122813c2b0364b23e20f3a31a0b3b08808a. 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/QM24S1917756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e140f182c3f8a5f2c56a95cc3530923428942a6f0920b67550a9338b06919d6. 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/UK6KW1800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb750df102fdc44e729430e7c918e286ff7e971d9c4aeee5ed4856fe076a75ad5. 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/SE5IB1900240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6e74623aa0e108fdb1c0fc4fed64837a528ac469376230256911ccbb81669b. 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/QZ6721600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90b2070aae249021ad51b251ae5c495ee100ee0be8cb15f15a9c5a7c45f617. 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/QM6N21871542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b66bdaa97029992b6b409a39db3dcc190714525220d8c126b403ca342315d80. 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/SE5IB1800881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1282a37931c44f70bc7900d0476315884310156bfaece79123f430abd01fd5e5. 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/GBKPL1815708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3435bb3923be6638bfc025428a04ad85a3b4090fb4bfd290421d53d97129b7d0. 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/SE5IB1800529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b54f665b31e68839ad56b5fa420bf9408b32006396170dc6b5a232ea2b6481. 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/SE5IB1702344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c2799761bd7591593197f805233cd064795d0510d444aee6b747fd0373f5f0. 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/QZANL1774913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc466d019903e05058640f815d90ce35043a9bee578cc539f394d9e9d01e181. 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/SE5IB1702127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d086700c6d06d743b8c62ca70804b0399931e31c212c4f5346fbf953e8f6487. 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/QZS672222987.
Rolling In The Deep (slowed + reverb) [feat. Kløn & Amanda Yang]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1413a7cfbb8c7d87ae9762ad3f2bad4606cdc87c98302f9cf41133082762ac10. 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/QZMHK2281077.