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 0x11a1c73702dbc93d7979a70f5f1d669782a6462cf5dbf9c8a3b51e372a691b7b. 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/f3657975-88cd-4238-a157-3b4f7382ad0b.json and https://artists.proofprofile.net/proofs/artist/f3657975-88cd-4238-a157-3b4f7382ad0b.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 0x45d8cfc4c930c9b7e5680a1e89f42bd294f38ab71e41e5eae22b7fde64ad0c2a. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QZDA71962160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c0a394aa3e6cdf90b5d3955aa4fbe1aab6719c13c90ee3c747484a40a5e87. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:54:31Z), 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/QZDA81951944.
I Love You, So Much So That I Want to Kill You
I Love You, So Much So That I Want to Kill You 2
Da Club Was Packed but I Was Lookin' Right at U
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2320f26a59151fa8f7e99f636d6b0dc0465ff8453b39a4153005134b64661187. 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/QZDA61855363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34542a4c590822f3ef043a6b339e5eafdea50da9e4f4b8117ea70bacae6296c4. 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/QZDA61855368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eff58fa3367a921f15b5d7d611b1fccf17ab5744cf763f3480e127918a3d6f. 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/QZDA61855369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105f55eb45976fda5cf4bfab44f3c8b38e0580b5784a4128645c9c704e14e52f. 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/QZDA61855370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ab502c25f0add5e9725b7a71380a34bc52e3e0348c317b29cf0c6d6cc85010. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZDA61855373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a8034e10ff280fdf1271fe48013da33c3a5e606c5fccb893cd30ac209d0ba2. 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/QZDA61855374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe9b295b3ea3fdbdcdf0afb59ce029c4a31a9721bfe7782036cb7f9fb24a118. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZDA61855375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cebb7c07aa7a8c1de8b66e9857df4ad60fa49facd0dc4a39ea065030e4c2a49. 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/QZK6P2246065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b58df581796e66b9472fb10d8d79fb573842a4223dbaa6c8233028e35e0f35a. 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/QZNWT2231172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e8ed9a6ab4c4269dd3c16808f78934898ef0a6a6afcf38efad617bfddb4e9. 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/QZES51965703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c7197a23b4d4f875e4e22e985cd803f6a7df3612d7a191fb30548e2cd2f0e. 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/QZAPG1759794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71e3bf4a6809153fae3f8c60980dd4f28c7acb4387b7f7483f913e632619a05. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZAPG1760040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ef09e8146a2c9dc8e3c6c91f21b4defeca42952975406ee1d39b11ddc2475e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:16:56Z), 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/QZAPG1766833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc274189e0eee9858d5478f7e6f30c30bc6e428ff5904f217bfcc9c69f245ff1c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZDA61855364.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb64813ad1ed9dc3135a2ac5e98a83739d58d721717b8634aabc53ce6a4a22c3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZDA61855365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cfb1502093b0c14f2cd75638721af00c71fb1af7250a053a6f8cb995044837. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZDA61855366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e80c15f691f6c31708e5193881e758d449f145c8e92ce88f17cbb07f534903. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZDA61855367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac9885256d232903dbf4be4dfa7bdf8943eb6169d1ecc9b268fd5efe8671ef1. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZDA61855371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe09919470dc1fa8c461b2096fd7e30f71553ea9d33dd36a9479199254c6512b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZDA61855372.