Térez Montcalm (born Thérèse Montcalm in 1963) is a Canadian jazz singer and songwriter. She sings and plays acoustic guitar, which she has played since a young age, as well as double bass. She descr
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 0x299b241a66a9c04df65de97bcbcc32bdf12124f291960c47399a9afbf27c97e5. 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/ade40407-eacb-4026-8a00-d3c9df6dbb18.json and https://artists.proofprofile.net/proofs/artist/ade40407-eacb-4026-8a00-d3c9df6dbb18.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 0xefe70323a0a395624c97880322df6694635d25b2bf2d5e1dc8d5b2168824d611. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/CAM240600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb2178326b1658c7925852f64529a873c1804a2c1a7d57bd1371648abad98cb. 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/CAM240600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6465a8f38ac979000cb0dcb9a0d9c7cc0d7deb07af8c6f2c05a1b769e6e5d681. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CAM240600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3174413d435a2cc7db6e8ec6b8e6692bca879eefe9b686c36b0329e9159ed906. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CAM240600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081028ec4e9f4eab7991b70b8d9c74887c1c20b290062c7183cf40002ced7c48. 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/CAM240600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67ad85063032f4254f006448caa827a91a04563d8ab2ae1bbd495efd51792c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:19:16Z), 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/CAM240600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6fe68ca0469220d21bca00a51e7a1fe7d4127f2bfc8a8cc723be8145ceae5a. 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/CAG600957006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412bd3a20344e4bb87edbed13e30788d80f694c5efb7119dec8dedbd18f2ffb3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CAG600957011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4324577863cb307dc0d1661f522cd6b39a07536ad71bbeaa6f5159ac5f27cae. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAG600957005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6fe68ca0469220d21bca00a51e7a1fe7d4127f2bfc8a8cc723be8145ceae5a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAG600957006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e1e14b5d4170b0eb7a4ae50f2ee32bbbbfe4524bb0238fe0d0d64a75bde4dd. 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/FRUM71100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e1e14b5d4170b0eb7a4ae50f2ee32bbbbfe4524bb0238fe0d0d64a75bde4dd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRUM71100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4766e1790d97ce514b1930631d214028ea2113ab02c15ec1d6483bafad973b14. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:31:59Z), 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/CADC41512313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0dfd58269228f88c83d50a4259d9a73bf8c192a417092213fb34cc7239b040. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CADC41512311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cb5fa4d67eaf96a62cfbc980e3f699871d8b875f765006556477434d75066b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CADC41512314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d439a5946379a85664bf8368675b7c4efe120c7bd84f1919f10faab930f8d7c. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:26:04Z), 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/CAS742391316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc896d9b7c4ae24844819684e54d9221f1fc720901917fb508271e1082fd2379e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAS742391315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e731660bf3a8cf3cd27af9f62373eb487987d3bcb435bf87783783fecdef430. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/CAS742391301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b97d63a8b62c84c486892e3d22f66e2ff6ad10aed5390fa86163b051a94f67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAS742391307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d439a5946379a85664bf8368675b7c4efe120c7bd84f1919f10faab930f8d7c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAS742391316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc896d9b7c4ae24844819684e54d9221f1fc720901917fb508271e1082fd2379e. 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/CAS742391315.
Le petit roi (Jean-Pierre Ferland chanté par…)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053ffe8d3e1faefc038ef3c83ab48465e069b588484d5cd9460aee260ba27eef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAG600311308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae980184f998af01f12f30d37b95ac4b12e00a4dcbde5df53cde9d854d93c18. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CADC41512316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0177284cff056ab9e153bb51a806ac1b58f5aee3649568ea290ca86497223468. 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/CADC41512312.
Jazz Divas: Les nouvelles voix féminines du jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1aeda36f9ef8e15e1a479d41711ee65612c6969a90d3f91f58108e608b3e56. 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/CAM240600010.
Un cadeau pour Sophie (Conte et chansons de Gilles Vigneault)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39081ba3b5481ed4c71465c69b22539a702fe338f9ec0d56b72d31699d18f5ff. 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/CAF420700225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4dba6e6063f9434a3f33605a2db6a1cb0f553b9f9880818bf8394adfd1297d. 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/CAF420700226.