L'Avenue is a mixed-use skyscraper complex in Montreal, Quebec, Canada. It is located across from the Bell Centre in downtown Montreal, on Avenue des Canadiens-de-Montréal between de la Montagne Stree
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 0x086130fd568e802382184b178e7620eb66455a7c13ceed5c7695d31acdef5a3f. 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/be44dc8a-33f6-4776-be04-3dc712903996.json and https://artists.proofprofile.net/proofs/artist/be44dc8a-33f6-4776-be04-3dc712903996.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 0x58ac9509a2e5ae268c06a1db306e375fe2a5d2210e085ae05dc71482f97234d0. 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/USL4R2019978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb31e6a13d63728705336be22a89064d7a33c0f4d5e01eae4ecc5c6d87cfd17. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USL4R2019979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ff5f2ac097c428ff1687061cae882454c4debc8aa5d16f3e8590aab40d2ea. 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/USL4R2019985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ea09a7726394c267fc96d12f2c1991ef831c069acd9d1ba354bb1667d76e5b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USDY42178747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b6249aedc52a8e0bcea6d50a83f2721dc2915a4ea69260b892cde70a140f59. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/USHM82180555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e405a3fad81d96a1856f940e51aea9798dbeeff0fb99959b4ff15aa47e2504. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/USHM82193726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f02e87b89e47cea32cc7df889e53131de458715e43b99bfa9e742262355153. 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/USHM82193728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4b11661790b16c7e43c5cfbcaf301ba701cebbeb2847330f544c610e04d112. 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/USHM82208382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388078775387229b56bc95d81f401fb3dfdf49e14ad3f892fb50737b97b907a3. 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/USHM82208384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8520159af01fdde86228ac03f06df9eeb2bc51786c85945af672066bfb125f0b. 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/USHM82208385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9fbb4e0f86e19f4d3ab614185db9d17369716b89ed498b6b8030f2e649eb0d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM82208388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591cad9979f6f53efa4a82d15e53ee1a16adf343591017bfaa98d05073b0b363. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USDY42360298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa358c1390a919d32641122b72fe3e814ce61e6742a2190a54c344ef95c4fb. 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/USDY42360301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0168c18d65db99b5d55ddb64ca3097822517972092196e897681ecc8c1370e0f. 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/USHM82451682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7125d1aa19c16ff5274006317854abe258e76bbf5c897dbeb29a1411d4312c3. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USDY42527716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea780bff6defe83a1621cde361809babec471d84314050ad318a32a853a4df83. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGJ2593904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb29d09a84af6e6903c2e1d7d3950f2ff938cacbf615bd88fcb9582904b0c937. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USDY42562050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7125d1aa19c16ff5274006317854abe258e76bbf5c897dbeb29a1411d4312c3. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USDY42527716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ad73bafb4d53e56e5ad4b7cb1bbfe4eab368a7417416659b65bd242f60050a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAHX2400008.