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 0x3a2b2217566c0f5ae0c3342a942e26f2836fbc1cbefa959d50c7169c67e40a37. 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/f2252dcb-cfd9-4dd3-879f-23a16cc4224c.json and https://artists.proofprofile.net/proofs/artist/f2252dcb-cfd9-4dd3-879f-23a16cc4224c.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 0x635dfbb347f8b7c34da2ee511b2545d430c222e2724534020623800dacd07073. 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/TCAEH1971449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025182d4cfb2c49e9624329fcab7a27e45d9c6948e5408602ce02b8b0006397. 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/QZES72441754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcfb8085b5b6f6dcb02726a68e3dc6d96cf02b73a0c17db19b06ab6723587c9. 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/CA5KR2420430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d898a389e1955cd91570b8b04d85d3b08c6417b9a2639147def770f9e328ae. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/CA5KR2420428.
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 0x04c9500ec47aecbe800481cf2ffcc8a5e57cd4e3eb259c399518a89575b0a8a5. 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/CA5KR2414715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe165eee6bcc77b1365141697f8cc29b91aebf1d123978075ce15888870382979. 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/CA5KR2414714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd794c8a73729be4bf7b0df054307bde808bfeb640c9b8ca0994f77aaa30b53ce. 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/QZMHN2273948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c4a5ffaa4508eaa558bfb98f488e3b82d7dec46ade55a85a5ebebb4116e2bf. 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/QZS632220926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0bff71e12aa177f296d8e2fb321cc773f4fb436270acf72abe4f47d5f3599e. 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/QZS632356139.
It Made Me Fearless (Lenny & SL!DE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d02fa4bbf61bb35d2b0711a98369557b136e5317d476d548a6dc4224d2703b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA5KR2322647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec905974612331823f716deb3df744ba6302bb65cb8f578ed7a295c0c2982b14. 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/CA5KR2316362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75a8e66486aa071828ebe8f0e0306b0f662f4318a44e2a3af9b8b46df05d7be. 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/CA5KR2267447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf05dc126f68ba7462e3f6fd3d92fd36e5f7686c99bd6b3499101163f77d204e. 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/CA5KR2249053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662a1e7842b1f9cf3ef201b7c1c46cb7477253d591e1c9b8b858a076c2b8df1b. 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/GBKPL2148209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb731d9a7eb32f5d0ae1153744329bb6ed84ea2003f76d838d79b4082a3f402fc. 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/GBKPL2145044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91d3ad7828ef5e95593b7b64f86b3c9a3631cf680a8493d9a1fbbd200889c7f. 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/GBKPL2144740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea80d8e1a280d4f4c750037374abcbe04118b07dd02386fc4042059a2785f5e. 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/TCAFE2064689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdee59c2f5d242bc594f67823614c6e36a9c59bf58de97649359f87fd00aa1e0. 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/US3DF2008025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75f0ac9ba10d6a945e36431e80b409ebee1d3990d2b3efe6c0df54c7ce3dd29. 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/GBKPL2025865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae92b1617f0a7821438a243aa6b491edf72217bd37541883847460a3ae01e5d. 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/TCAEU2041299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fcf14f11760b569f60e630e0b6933a12144725cd5a82abe941a74530c26e8c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAES2063728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c2f08c1bfc63392174307821db03adbedd98a36602908870e03b27eda2dd67. 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/TCAEM1962095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0335cac924c25d665b065b80e36a23759485624ec0bc372fc178af9bc93ddcd. 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/TCAEF1914464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566e4cdc2001875c11475a48758804f6297b3e235a21e6d1c93dc6accd4f3692. 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/TCAEB1936943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc33ccea517cd3c90dd759b18ea16725829ae3f913a84706fcede3f53a685566. 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/TCAEA1828605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b48620a5d3eb807848ab4b4c54007fedf3ab8dcc41f0439ef78f777c1233553. 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/QM42K2062189.