thumb|The classical Punjabi tragedy of Heer Ranjha, one of the four classic tragedies of Punjabi folklore; the tragedy's epic form by Waris Shah is regarded as one of the greatest pieces of Punjabi li
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 0xfa6face5bf9f248aeaec368744c7cfc7fe2f4016bf39b26fedc84f82499e1931. 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/12c6feeb-a79e-45cf-945a-e93b5042771d.json and https://artists.proofprofile.net/proofs/artist/12c6feeb-a79e-45cf-945a-e93b5042771d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Rock Sweet Balls and Can Do No Wrong((A Metal Tribute To The Bee Gees)
We Rock Sweet Balls and Can Do No Wrong: A Metal Tribute to the Bee Gees
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 0x6be4cadea8d0c584285e520a3905a572bd2ec9e3d1e9392389017720e6334bd1. 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/USA2P1371074.
That's the Way (I Like It) / (Shake, Shake, Shake) Shake Your Booty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699fc8370185f9318efd968bb2f20208b62a47bf1a4257398540d4be7d6e8d9b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USA2P1371075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5118b08a3ea6799a2d0317b7f80b88fb2ec47e23f6ae61a9dcb150f45fa31bdb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USA2P1371077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb48ff8ee54b22b29e5cdafa7aa6a88d666a40c1c71b234a2f1cd5e9f48a95e3. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USA2P1371080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b8891f06d3dbdb5c2a6da95954ea4b1cfb80fe16c52b2949eece6229946e4e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USA2P1371081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf300730b4eae3b2999975362bb165d0968ecc0662cb193a5110c0a6223a2871d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USQY51538273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9977db7598a2bf58dbbb2e8f6c8d9faeec7bcf1dabc7cbb8dfcbde31d76657c. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/USQY51538274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4046c4531b1472f84c4d5e05cfaaf0edc4f0b2b4ea17b367f78419778436f54d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USQY51538279.
We Rock Sweet Balls and Can Do No Wrong: All Metal Tribute to the Bee Gees
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662aaeb1f3892750f6277841ee4398c2206b15a6aa3cae3215579a27cacd98cf. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/USAZL0910005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f8a3e195c24915f4ec045beeb7704d1dbc8f083715682c5c7c20fbe40cacb. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CAHQJ1983595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e40689d9c6bb3d5d8637bc0ba1a31e6e1c7f14147386fad7fdfe2dd4bb33dc. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CAHQJ1983603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6bac671f5d42ac923d3735c4aa8d0acbae4603974c9354347f7840f0e672e. 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/CAHQJ1983607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d1541b4952cedf0bdb03a65766351c4710ba0728248ed5e71f24d1bc89c42. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CAHQJ1983608.
Bang Out of Order - Live from the Black Country
Raining Blood / It's Raining Men (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20368e351327f35aef5c20cb22ed6853518a3bee1b2deb01c8fff2f59bc8c9ec. 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/ATN262314602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e434c774223dad0ce6c995d13d3403ebd52ce5efc922c2e51dcdd0b5534aae. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR8GV2212010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31854c8e8c8d5236033062572fc3615f3185d339b63aea4bc4fa024fe8623cab. 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/QZK6N1999008.