Broken Social Scene is a Canadian indie rock band and musical collective including as few as six and as many as nineteen members, formed by Kevin Drew (vocals, guitar) and Brendan Canning (vocals, bas
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 0x717236a6cd638d269a9eae66667b2c7b1fd552b6e91e734b5796a0ff7f6255b5. 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/c3ac51d3-737b-46ab-9fdc-747301f72f42.json and https://artists.proofprofile.net/proofs/artist/c3ac51d3-737b-46ab-9fdc-747301f72f42.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 0x8de5d9536fd7a79919e012b790e990e100a39bdf4857b13a4cc5131fef686ff5. 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/CAAA11713505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd3298426cdc701821ed149e33feae4b58a8c95959ed4a3ec38d63c29fc8283. 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/CAAA11713507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e466493937bf3591ecb7edbf442e649e753699097ba125e48d5e73a4779666. 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/CAAA11005414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62edd7ed1ab48ae76438f4a784d1d04733ee5beb3bcb9f241705d980443d6334. 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/CAAA11005406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d78ec7d3a00d3f2a192a0db91ee9af07eb4da2b151a158183a7e798f5e7ac57. 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/CAAA10501401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60fd5fe73fa9bf0b20a6f67552b113960fbc3b8d2cf40e4bb04ea8e7748ce6c. 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/CAAA10501402.
Finish Your Collapse And Stay For Breakfast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09d667f349529ae051f66433556cdd357e20dfb61724dad20d4320f3806c4f6. 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/CAAA10501404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1675111d559049a6f84561e1d476830e0d1892547daf77fc8d31f660ca25a499. 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/CAAA10501405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703184c9b83af0110448c4894e145ec7f1f5e14a80b88efb06f51d67ab4dd550. 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/CAAA10501406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f4ea2efbd4ae9281b82dd780e451405d12bae7696824d4abad6cb909f5106. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAAA10501407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a223b131959524a9ac402c241fac27064d843fe96983ed3a117db1f6ed9e9a. 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/CAAA10501408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a962ab13840fd3c20933f6bafe017772ceeb82c25f7e0913940d865135eeb4. 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/CAAA10501409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc252628f5b118dbedeab14bf167aeb0b141dfd97497f5a9ad12e82197508881b. 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/CAAA10501411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dcb90ba96c58f0cf2e862c4cf7b71801972899b9cdfb3429c5b58e39b9a8cf. 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/CAAA10501414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f5a94876d5c9389bcf988f59b30c19ab74818579810d20bfbdd3a6d6bc0630. 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/CAAA10200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5834c03f965f3a3de0787ba7aa7f4d05b57ff84c4aa006f2063c6c6ad1ce0f5. 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/CAAA10200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10f3e9035e3ab2b0ebc4b3fcd3581c63a1185038ae4d2cc0235d124da06dc1e. 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/CAAA10200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29808d9d6162230a4902959246ac0eb201cce929ab365424c20e2a5c0ab60c79. 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/CAAA10200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337d9bbb5a97edc1524fe0461e64859b2ff24ab13efa553f71d2f9a8f44bee91. 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/CAAA10200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdafbd4080262e043a0cebab6a004ae132d3e9c3110859eaf6a69bea1d63e9dd. 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/CAAA10200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fb29c3b766830add529773b8154c178c33289df0471275e886d01b0195ef09. 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/CAAA10200108.
Late Nineties Bedroom Rock For The Missionaries
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53f80c3ad16add0e835b8186ce95fb9bd36d1c0a0803fcadc017701242cb8c7. 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/CAAA10200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5396210aa4bd3383fd21beef4510d5339ec8f528e9c80e05a1df86f66d699c4. 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/CAAA10200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f340ad320fd1b63f417ed0d13c5819412d33442ec51fcc95998acfcd36df06. 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/CAAA10200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205571d8d3e12ca46088ddab30d6615058d7a1f7e5392ff073bea7d292b0ef18. 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/CAAA10200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69004618bd230c748654bc76d4f7bb6b3c2d62c5a4125d9a1b3582cc53185bc6. 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/CAAA11817007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366e1c82f602826f508fbaad80fe17d3e4755b2f3c1b0b734d3eb210677a2f46. 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/CAAA10501403.