Jim Gelcer (born December 16, 1961) is a Canadian jazz drummer, singer, musician, composer, and producer, also known for blending traditional kirtan, a genre of spiritual music from India, with modern
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 0xe61c3591743f07711d9cab5928e6eebe01010f6c590cec6fa654e7a1fdf2b03e. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c19a9395-9717-4762-8f96-35dd171aff4b.json and https://artists.proofprofile.net/proofs/artist/c19a9395-9717-4762-8f96-35dd171aff4b.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 0x6be88eb5654a200557b1d1fad6073058efcca160f7175fd89d9e10cc1b79ae0d. 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/CA23D1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790466c1cdf44d38bd7b347cd82b62fb8214579181fbbad5f99e546998d90fa5. 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/CA23D1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094090d3d4f5524505389bece7e2a1d2eff3532c67e1d0af24472859773eeabf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CA23D1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e7b05bd8f06b31a45f5e0c28633f6d0e3a77e453459dfe9e53542005445946. 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/CA23D1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f297f3ec61d7adcfdae4101115cfeff8f8f1db2dda0f0485e06a61e4058cda. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CA23D1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cafaea8cf6b1b33fecd95a5afb980eaef783b83e718a5e0b0394488d4c383f. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/CA23D1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332654fa6e2d92d79fa7f48b7332c3828afa144cdd2a1d79a740c98bb4d63990. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CA23D1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532b3b963c549d7f4fdf0471c4bf4b00ba3ddf2c8d649791bc8ffb9fbabf00c6. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CA23D1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e081bfb62c67ad5fefc2d814178571e101a34aaa8e7bb5bcb5a99a3f99acd23. 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/CA23D1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a76a207224045b08cb3f916bdc581287145692979495d84d7e8c2795925013c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA23D1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22146f5fa04310355337fd26d1c6bdd6f388251a47de9fee15245608caead1da. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CA23D1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb446852ac99fa80f7238289300b5b18954a947f2cd265179b4f83e91e3d3dc3. 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/CA23D1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b16703df0df9ca716362820b2ae594aa5c6dba050144bf96f8e60aa0cf42c7. 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/CA23D1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752c3a186ef075f13295de9e6b00316f64473f939a511efb694530d8491f5b0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CA23D1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eba4a3d5963a97a7e626fcbe87e7d005d1becd5d5385dd81ac19fb19ee80713. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USB8U1078087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e9948963baec808e6ba68a487a629e2d3d0b6b95d12dcf3d3011139ccd04b5. 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/CA23D2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c7855db62023949ead61d40b4868dfebaea57d2065cd5ab44699db57c0103. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USDH51611547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56933bf95b43cfe5859af9870cf24712e330b8f63c1cbd6c552604fe06c0f5aa. 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/USDH51611550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaab6f956b331d937f4007f6ad03d91ac1304e3d3505c65bda86fb9224161dda. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDH51611551.