thumb|Dilly Dally album release (888 Dupont), October 8, 2015 Dilly Dally were a Canadian alternative rock band from Toronto."A stronger, healthier Dilly Dally reaches for Heaven on second album". Tor
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 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 0xa2395afdb82b0f99fd7b9081007b4527343c4ce05870b42d1a94629248d7ae92. 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/d080e4a1-32bc-49b8-9815-5b12a4f94fe2.json and https://artists.proofprofile.net/proofs/artist/d080e4a1-32bc-49b8-9815-5b12a4f94fe2.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 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 0x2d005e40e46a37b51d4c2e3a3b26ee6ac80c6c24cf4b29b670d46e21522741ba. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USFP71448002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f56ef90ffd79098f8f9ebe1e313fbc876b6400be981543d4bb1b887926a5c7. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USBQU1500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f344895a73d1e8e2f856cf5ce514a65f7710bf6c66204c7361e2a13d03abbf. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USBQU1500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483fe09ba34d147251d4e0a7cccfca47df6c203ae71216e82925d8156600470e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USBQU1500504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a0aff8b74d0c46def7752c544b8cdf3d909bf95c91de816d87d74b01fc940. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USBQU1500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88ca4c041146b395a0a03f9bde94e9983b27e76d3a91fb69d08951818382621. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USBQU1500506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487edb089c2da4363fcc8c949f4aad3e74e247d8b4b9090937b964aa1928c787. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USBQU1500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f11ca95504f1c2ceedf216689aa0408a23b69f4e313e75467dd97b4a27ceb9d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USBQU1500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5453aa015ead6b3af91d1f6d76470ffb43a11882eba71c1008eed59c56ef41de. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USBQU1500509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895e73f8912e821ab456e22515340f2b5486d82bb7de52458cddfab6b21db66. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USBQU1500510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed51483411c0f3d4393d20db689ab1eb3e6d6ef69a97de6c0a5c86bf93682a2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USBQU1500537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe7dcc5cbbb43b9c4fc466f5a8b0a7d3b3018df75d49359fd9dbd1c47e26c28. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USBQU1500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f7c0eacac244a804ef83589a13dbfe67847250960c66e84588e985b32e52bd. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USBQU1600156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5b91efd4edcd0a774e56f4105471b4d9b9c5a52cdfac30978d162c2d4bc133. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/USBQU1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da01afb2fc0b3443ab0a4d41218318b14a8135a3423b4c9b65527dffb65b2d6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USBQU1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cbbe42dd1ea7bf703edca7e8ac4c625e5901539025145f5d435d00cca7bd22. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USBQU1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad812462be6fa0fe4347f26acd489e2418de2365ec33af47c3b4e8a287cd873. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USBQU1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808ee500bf600595f4c97bd4c2e20d1390afae0236ad5364b466420ab5b7854e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USBQU1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcdd793a8ddd6490e8cb94390f52caf17b6178459c311d6b46004c46343f524. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USBQU1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70c6ef4646e72730033a230a6cc1c7ac4952235bac231c95d6641830f5920ed. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USBQU1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25671ef17a8f6bc7661b8ad35dcddb1ae595f63880407c604cf65e44bf5f7ae0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USBQU1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496d249a38ea0d0f14d8ff89ddcfdd91a2d6df6f2522ca84255f96e4233d71c2. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USBQU1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b026be9232411f2b24af4f4269d8cc10a89900111e66aca06c66c792f6a9c90. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USBQU1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b026be9232411f2b24af4f4269d8cc10a89900111e66aca06c66c792f6a9c90. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USBQU1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a891d8a30fdcf0cf696ededb3d12a4a8cec3304e6635914ccacfe10a119f0d7. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/CAB9Q1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87b2f5baa440ac8795226659041b50258c2522dba98c0e9d874118047a8cdfa. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZES62319370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcb51eb7d95fde72f174c56bc190262ff245fdc2538cb58ddca3244ee265d7a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES62319260.