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 0xec01d68fc922923542c1ffc75f93c2827b664de271f5fa527e2c6993a26eb9fd. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efe922c7-d903-4bbb-ba90-96bfb625c9ae.json and https://artists.proofprofile.net/proofs/artist/efe922c7-d903-4bbb-ba90-96bfb625c9ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dry Bar Comedy Presents Alex Velluto: Spurious
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 0x41dd35fb6e249e52558b85cfcb8fc3b09f593fc74f6581248340f48ab5c3fd13. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZFYY2053841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f506829f51e8b2ab124c332a8b3e5afe1c98c4a9f7f71f29a2aaae61d68e80. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFYY2053842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6091b4eadb9401c5d43180608cd1f7f23e85052803cb6e3647a5f36b7c5a315. 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/QZFYY2053843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7214f2455d93b2091cf812bb5f352c8ce98cf361609e78f597f0aedd60bdab75. 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/QZFYY2053844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fd28eadea771fb5ba8f1acccaa4815962e65b28cbcd1a5e69e3ce91bdc5c37. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFYY2053845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f2e67876988a71e0721db4554f2712e10642f303d4459563d091e567867b5f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFYY2053846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83a7a015df5ad511cea3f5615050ad68f7aeba29204cc46b2511def49259380. 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/QZFYY2053847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1c8e48e16cfb247d30059bba88003411f40009709c33f58f1f892ae957b2d8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYY2053848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cefdf8278dfe6b8f615ac8068f17162fd83a1849045ce5b4df6dc50dbd951d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFYY2053849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87da67c959bddda00ff403fdc7afd4a47f4ba5c4fc7161126251a4b85fc4bb2. 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/QZFYY2053850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7109126dbd857db5a4568069d403128112619531502dca0c02936e38a33e60. 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/QZFYY2053851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ebf309bda014276ed4d89991583aa8b672e588e3cd17d1ed4ef479484fc938. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYY2053852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a9c44343757204e75b7c68ef7ac736c02ce6ae31482bec7a1fde60a96a8f3b. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZFYY2053853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae03c7298933119305b5c42c759e1480d2f00728c39031f8f8da76f58c6f287. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYY2053854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c60adb859f456f54da20808a333208c111fef30f920f1b6659add037844d7f0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFYY2053855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08e39bb43c34f8447469735bea1f1d2d68674989f02d5b62d34de4790d0130e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZFYY2053856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0234a33129124bde9c63e30f0a00004554df5d8cf259054c2593fd7b7457f390. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFYY2053857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0282e22b7025037f62551158f4257f44c7c7e51058254cced651de22856ccbf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYY2053858.
Dry Bar Comedy Presents Alex Velluto: The Big Gulp Kid
Dry Bar Comedy Presents: The Big Gulp Kid